20231321324 has 24 divisors (see below), whose sum is σ = 35920026240. Its totient is φ = 9968690304.

The previous prime is 20231321323. The next prime is 20231321437. The reversal of 20231321324 is 42312313202.

It is a super-2 number, since 2×20231321324² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20231321324.

It is not an unprimeable number, because it can be changed into a prime (20231321323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325637 + ... + 382755.

It is an arithmetic number, because the mean of its divisors is an integer number (1496667760).

Almost surely, 2^20231321324 is an apocalyptic number.

It is an amenable number.

20231321324 is a deficient number, since it is larger than the sum of its proper divisors (15688704916).

20231321324 is a wasteful number, since it uses less digits than its factorization.

20231321324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58409 (or 58407 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20231321324 its reverse (42312313202), we get a palindrome (62543634526).

The spelling of 20231321324 in words is "twenty billion, two hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty-four".