23021031132 has 72 divisors (see below), whose sum is σ = 63500166912. Its totient is φ = 6974100000.

The previous prime is 23021031113. The next prime is 23021031139. The reversal of 23021031132 is 23113012032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021031139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2040507 + ... + 2051757.

Almost surely, 2^23021031132 is an apocalyptic number.

23021031132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23021031132 is an abundant number, since it is smaller than the sum of its proper divisors (40479135780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23021031132 is a wasteful number, since it uses less digits than its factorization.

23021031132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16439 (or 16434 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23021031132 its reverse (23113012032), we get a palindrome (46134043164).

The spelling of 23021031132 in words is "twenty-three billion, twenty-one million, thirty-one thousand, one hundred thirty-two".