10320897431 has 8 divisors (see below), whose sum is σ = 11180583120. Its totient is φ = 9526980216.

The previous prime is 10320897359. The next prime is 10320897437. The reversal of 10320897431 is 13479802301.

It is not a de Polignac number, because 10320897431 - 2³⁰ = 9247155607 is a prime.

It is a super-2 number, since 2×10320897431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320897437) 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, 2346665 + ... + 2351058.

It is an arithmetic number, because the mean of its divisors is an integer number (1397572890).

Almost surely, 2^10320897431 is an apocalyptic number.

10320897431 is a deficient number, since it is larger than the sum of its proper divisors (859685689).

10320897431 is an frugal number, since it uses more digits than its factorization.

10320897431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697762 (or 4697736 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 10320897431 in words is "ten billion, three hundred twenty million, eight hundred ninety-seven thousand, four hundred thirty-one".