20231323120 has 40 divisors (see below), whose sum is σ = 49513505040. Its totient is φ = 7666606080.

The previous prime is 20231323117. The next prime is 20231323163. The reversal of 20231323120 is 2132313202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6653521 + ... + 6656560.

It is an arithmetic number, because the mean of its divisors is an integer number (1237837626).

Almost surely, 2^20231323120 is an apocalyptic number.

20231323120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20231323120 is an abundant number, since it is smaller than the sum of its proper divisors (29282181920).

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

20231323120 is a wasteful number, since it uses less digits than its factorization.

20231323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13310113 (or 13310107 counting only the distinct ones).

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

Adding to 20231323120 its reverse (2132313202), we get a palindrome (22363636322).

The spelling of 20231323120 in words is "twenty billion, two hundred thirty-one million, three hundred twenty-three thousand, one hundred twenty".