20231223100 has 72 divisors (see below), whose sum is σ = 49437835776. Its totient is φ = 7119480000.

The previous prime is 20231223097. The next prime is 20231223101. The reversal of 20231223100 is 132213202.

It is a super-2 number, since 2×20231223100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231223101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262546 + ... + 330745.

It is an arithmetic number, because the mean of its divisors is an integer number (686636608).

Almost surely, 2^20231223100 is an apocalyptic number.

20231223100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20231223100 is an abundant number, since it is smaller than the sum of its proper divisors (29206612676).

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

20231223100 is a wasteful number, since it uses less digits than its factorization.

20231223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593347 (or 593340 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20231223100 its reverse (132213202), we get a palindrome (20363436302).

The spelling of 20231223100 in words is "twenty billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred".