10645320031 has 4 divisors (see below), whose sum is σ = 10651594752. Its totient is φ = 10639045312.

The previous prime is 10645320017. The next prime is 10645320047. The reversal of 10645320031 is 13002354601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13002354601 = 233 ⋅55804097.

It is a cyclic number.

It is not a de Polignac number, because 10645320031 - 2⁷ = 10645319903 is a prime.

It is a super-2 number, since 2×10645320031² (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 = 10645319978 and 10645320005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645320001) 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, 3134815 + ... + 3138208.

It is an arithmetic number, because the mean of its divisors is an integer number (2662898688).

Almost surely, 2^10645320031 is an apocalyptic number.

10645320031 is a deficient number, since it is larger than the sum of its proper divisors (6274721).

10645320031 is an equidigital number, since it uses as much as digits as its factorization.

10645320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6274720.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 10645320031 its reverse (13002354601), we get a palindrome (23647674632).

The spelling of 10645320031 in words is "ten billion, six hundred forty-five million, three hundred twenty thousand, thirty-one".