123313223100 has 72 divisors (see below), whose sum is σ = 356826880368. Its totient is φ = 32879782400.

The previous prime is 123313223023. The next prime is 123313223113. The reversal of 123313223100 is 1322313321.

It is a super-2 number, since 2×123313223100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3497560 + ... + 3532640.

It is an arithmetic number, because the mean of its divisors is an integer number (4955928894).

Almost surely, 2^123313223100 is an apocalyptic number.

123313223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123313223100 is an abundant number, since it is smaller than the sum of its proper divisors (233513657268).

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

123313223100 is a wasteful number, since it uses less digits than its factorization.

123313223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46815 (or 46808 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123313223100 its reverse (1322313321), we get a palindrome (124635536421).

The spelling of 123313223100 in words is "one hundred twenty-three billion, three hundred thirteen million, two hundred twenty-three thousand, one hundred".