12123101312131 has 8 divisors (see below), whose sum is σ = 12668238614304. Its totient is φ = 11579467838400.

The previous prime is 12123101312093. The next prime is 12123101312159. The reversal of 12123101312131 is 13121310132121.

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

It is a cyclic number.

It is not a de Polignac number, because 12123101312131 - 2³⁹ = 11573345498243 is a prime.

It is a super-2 number, since 2×12123101312131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12123101312191) 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, 375940626 + ... + 375972871.

It is an arithmetic number, because the mean of its divisors is an integer number (1583529826788).

Almost surely, 2^{12123101312131} is an apocalyptic number.

12123101312131 is a deficient number, since it is larger than the sum of its proper divisors (545137302173).

12123101312131 is an equidigital number, since it uses as much as digits as its factorization.

12123101312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751914221.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 12123101312131 its reverse (13121310132121), we get a palindrome (25244411444252).

The spelling of 12123101312131 in words is "twelve trillion, one hundred twenty-three billion, one hundred one million, three hundred twelve thousand, one hundred thirty-one".