20232431164 has 24 divisors (see below), whose sum is σ = 38665167408. Its totient is φ = 9187127040.

The previous prime is 20232431159. The next prime is 20232431243. The reversal of 20232431164 is 46113423202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192339 + ... + 278314.

It is an arithmetic number, because the mean of its divisors is an integer number (1611048642).

Almost surely, 2^20232431164 is an apocalyptic number.

It is an amenable number.

20232431164 is a deficient number, since it is larger than the sum of its proper divisors (18432736244).

20232431164 is a wasteful number, since it uses less digits than its factorization.

20232431164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471645 (or 471643 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20232431164 its reverse (46113423202), we get a palindrome (66345854366).

The spelling of 20232431164 in words is "twenty billion, two hundred thirty-two million, four hundred thirty-one thousand, one hundred sixty-four".