12123210301031 has 8 divisors (see below), whose sum is σ = 12323611641600. Its totient is φ = 11924235304960.

The previous prime is 12123210300991. The next prime is 12123210301049. The reversal of 12123210301031 is 13010301232121.

It is a happy number.

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 2^k-12123210301031 is a prime.

It is a super-2 number, since 2×12123210301031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12123210300994 and 12123210301012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123210301091) 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, 356568986 + ... + 356602983.

It is an arithmetic number, because the mean of its divisors is an integer number (1540451455200).

Almost surely, 2^{12123210301031} is an apocalyptic number.

12123210301031 is a deficient number, since it is larger than the sum of its proper divisors (200401340569).

12123210301031 is an equidigital number, since it uses as much as digits as its factorization.

12123210301031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713172249.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12123210301031 its reverse (13010301232121), we get a palindrome (25133511533152).

The spelling of 12123210301031 in words is "twelve trillion, one hundred twenty-three billion, two hundred ten million, three hundred one thousand, thirty-one".