13122310031 has 4 divisors (see below), whose sum is σ = 13123216392. Its totient is φ = 13121403672.

The previous prime is 13122310009. The next prime is 13122310039. The reversal of 13122310031 is 13001322131.

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 13122310031 - 2²² = 13118115727 is a prime.

It is a super-2 number, since 2×13122310031² (a number of 21 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 = 13122309991 and 13122310009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122310039) 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, 431105 + ... + 460538.

It is an arithmetic number, because the mean of its divisors is an integer number (3280804098).

Almost surely, 2^13122310031 is an apocalyptic number.

13122310031 is a deficient number, since it is larger than the sum of its proper divisors (906361).

13122310031 is an equidigital number, since it uses as much as digits as its factorization.

13122310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906360.

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

Adding to 13122310031 its reverse (13001322131), we get a palindrome (26123632162).

The spelling of 13122310031 in words is "thirteen billion, one hundred twenty-two million, three hundred ten thousand, thirty-one".