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1211142131410 = 256710317550241
BaseRepresentation
bin10001100111111101101…
…100100100111011010010
311021210011120121000212011
4101213331230210323102
5124320404341201120
62324220243053134
7153334142154121
oct21477554447322
94253146530764
101211142131410
11427708182362
121768890711aa
138a296ab7883
1442896235ab8
1521787ea2c5a
hex119fdb24ed2

1211142131410 has 32 divisors (see below), whose sum is σ = 2234075605632. Its totient is φ = 472592862720.

The previous prime is 1211142131377. The next prime is 1211142131411. The reversal of 1211142131410 is 141312411121.

It is not an unprimeable number, because it can be changed into a prime (1211142131411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8706111 + ... + 8844130.

It is an arithmetic number, because the mean of its divisors is an integer number (69814862676).

Almost surely, 21211142131410 is an apocalyptic number.

1211142131410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211142131410 is a deficient number, since it is larger than the sum of its proper divisors (1022933474222).

1211142131410 is a wasteful number, since it uses less digits than its factorization.

1211142131410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17550418.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 1211142131410 its reverse (141312411121), we get a palindrome (1352454542531).

The spelling of 1211142131410 in words is "one trillion, two hundred eleven billion, one hundred forty-two million, one hundred thirty-one thousand, four hundred ten".

Divisors: 1 2 5 10 67 103 134 206 335 515 670 1030 6901 13802 34505 69010 17550241 35100482 87751205 175502410 1175866147 1807674823 2351732294 3615349646 5879330735 9038374115 11758661470 18076748230 121114213141 242228426282 605571065705 1211142131410