20231123312 has 40 divisors (see below), whose sum is σ = 40181511552. Its totient is φ = 9862041600.

The previous prime is 20231123261. The next prime is 20231123327. The reversal of 20231123312 is 21332113202.

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, 1018112 + ... + 1037792.

Almost surely, 2^20231123312 is an apocalyptic number.

It is an amenable number.

20231123312 is a deficient number, since it is larger than the sum of its proper divisors (19950388240).

20231123312 is a wasteful number, since it uses less digits than its factorization.

20231123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21297 (or 21291 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20231123312 its reverse (21332113202), we get a palindrome (41563236514).

The spelling of 20231123312 in words is "twenty billion, two hundred thirty-one million, one hundred twenty-three thousand, three hundred twelve".