20231312032 has 12 divisors (see below), whose sum is σ = 39830395626. Its totient is φ = 10115656000.

The previous prime is 20231312011. The next prime is 20231312063. The reversal of 20231312032 is 23021313202.

It can be written as a sum of positive squares in only one way, i.e., 12751829776 + 7479482256 = 112924^2 + 86484^2 .

It is a super-2 number, since 2×20231312032² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316114219 + ... + 316114282.

Almost surely, 2^20231312032 is an apocalyptic number.

It is an amenable number.

20231312032 is a deficient number, since it is larger than the sum of its proper divisors (19599083594).

20231312032 is an equidigital number, since it uses as much as digits as its factorization.

20231312032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632228511 (or 632228503 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20231312032 its reverse (23021313202), we get a palindrome (43252625234).

The spelling of 20231312032 in words is "twenty billion, two hundred thirty-one million, three hundred twelve thousand, thirty-two".