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1312101002321 = 29253117876279
BaseRepresentation
bin10011000101111111010…
…100000110110001010001
311122102202120112001201022
4103011333110012301101
5132444140324033241
62442434302045225
7163540041333464
oct23057724066121
94572676461638
101312101002321
1146650589a35a
12192363b79815
1396966163a45
14477127792db
15241e649754b
hex1317f506c51

1312101002321 has 8 divisors (see below), whose sum is σ = 1357882228800. Its totient is φ = 1266355533520.

The previous prime is 1312101002281. The next prime is 1312101002339. The reversal of 1312101002321 is 1232001012131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1312101002321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312101002321.

It is not an unprimeable number, because it can be changed into a prime (1312101002371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8864741 + ... + 9011538.

It is an arithmetic number, because the mean of its divisors is an integer number (169735278600).

Almost surely, 21312101002321 is an apocalyptic number.

It is an amenable number.

1312101002321 is a deficient number, since it is larger than the sum of its proper divisors (45781226479).

1312101002321 is a wasteful number, since it uses less digits than its factorization.

1312101002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17878839.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1312101002321 its reverse (1232001012131), we get a palindrome (2544102014452).

The spelling of 1312101002321 in words is "one trillion, three hundred twelve billion, one hundred one million, two thousand, three hundred twenty-one".

Divisors: 1 29 2531 73399 17876279 518412091 45244862149 1312101002321