10231320031 has 16 divisors (see below), whose sum is σ = 11135355840. Its totient is φ = 9377061120.

The previous prime is 10231320019. The next prime is 10231320049. The reversal of 10231320031 is 13002313201.

It is a cyclic number.

It is not a de Polignac number, because 10231320031 - 2⁵ = 10231319999 is a prime.

It is a super-2 number, since 2×10231320031² (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 = 10231319987 and 10231320014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231320091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72291 + ... + 160276.

It is an arithmetic number, because the mean of its divisors is an integer number (695959740).

Almost surely, 2^10231320031 is an apocalyptic number.

10231320031 is a deficient number, since it is larger than the sum of its proper divisors (904035809).

10231320031 is a wasteful number, since it uses less digits than its factorization.

10231320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232674.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10231320031 its reverse (13002313201), we get a palindrome (23233633232).

The spelling of 10231320031 in words is "ten billion, two hundred thirty-one million, three hundred twenty thousand, thirty-one".