12310021030031 has 4 divisors (see below), whose sum is σ = 12310057803912. Its totient is φ = 12309984256152.

The previous prime is 12310021030007. The next prime is 12310021030033. The reversal of 12310021030031 is 13003012001321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12310021030031 - 2⁴² = 7911974518927 is a prime.

It is a super-2 number, since 2×12310021030031² (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 = 12310021029991 and 12310021030009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310021030033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17880161 + ... + 18555866.

It is an arithmetic number, because the mean of its divisors is an integer number (3077514450978).

Almost surely, 2^{12310021030031} is an apocalyptic number.

12310021030031 is a deficient number, since it is larger than the sum of its proper divisors (36773881).

12310021030031 is an equidigital number, since it uses as much as digits as its factorization.

12310021030031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36773880.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12310021030031 its reverse (13003012001321), we get a palindrome (25313033031352).

The spelling of 12310021030031 in words is "twelve trillion, three hundred ten billion, twenty-one million, thirty thousand, thirty-one".