20232331320 has 64 divisors (see below), whose sum is σ = 60957580320. Its totient is φ = 5372125184.

The previous prime is 20232331307. The next prime is 20232331321. The reversal of 20232331320 is 2313323202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232331321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333849 + ... + 389768.

Almost surely, 2^20232331320 is an apocalyptic number.

20232331320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20232331320 is an abundant number, since it is smaller than the sum of its proper divisors (40725249000).

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

20232331320 is a wasteful number, since it uses less digits than its factorization.

20232331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723864 (or 723860 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20232331320 its reverse (2313323202), we get a palindrome (22545654522).

The spelling of 20232331320 in words is "twenty billion, two hundred thirty-two million, three hundred thirty-one thousand, three hundred twenty".