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1201213000131 = 3171915110637723
BaseRepresentation
bin10001011110101101110…
…111111100100111000011
311020211112121011220100020
4101132231313330213003
5124140041012001011
62315455111224523
7152533115014404
oct21365567744703
94224477156306
101201213000131
11423482472041
12174977978143
13893739b1471
14421d367d9ab
15213a6443006
hex117addfc9c3

1201213000131 has 64 divisors (see below), whose sum is σ = 1798829383680. Its totient is φ = 708546009600.

The previous prime is 1201213000079. The next prime is 1201213000151. The reversal of 1201213000131 is 1310003121021.

It is a happy number.

It is not a de Polignac number, because 1201213000131 - 221 = 1201210902979 is a prime.

It is a super-2 number, since 2×12012130001312 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1201213000131.

It is not an unprimeable number, because it can be changed into a prime (1201213000151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 155533236 + ... + 155540958.

It is an arithmetic number, because the mean of its divisors is an integer number (28106709120).

Almost surely, 21201213000131 is an apocalyptic number.

1201213000131 is a deficient number, since it is larger than the sum of its proper divisors (597616383549).

1201213000131 is a wasteful number, since it uses less digits than its factorization.

1201213000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1201213000131 its reverse (1310003121021), we get a palindrome (2511216121152).

The spelling of 1201213000131 in words is "one trillion, two hundred one billion, two hundred thirteen million, one hundred thirty-one", and thus it is an aban number.

Divisors: 1 3 17 19 51 57 151 323 453 969 1063 2567 2869 3189 7701 7723 8607 18071 20197 23169 48773 54213 60591 131291 146319 146737 160513 343349 393873 440211 481539 1030047 1166173 2494529 2728721 3049747 3498519 7483587 8186163 8209549 9149241 19824941 22157287 24628647 51845699 59474823 66471861 139562333 155537097 155981431 376673879 418686999 467944293 1130021637 1239641899 2651684327 3718925697 7955052981 21073912283 23553196081 63221736849 70659588243 400404333377 1201213000131