123329981700 has 72 divisors (see below), whose sum is σ = 396483060960. Its totient is φ = 32887994400.

The previous prime is 123329981693. The next prime is 123329981729. The reversal of 123329981700 is 7189923321.

It is a super-2 number, since 2×123329981700² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 22836186 + ... + 22841585.

It is an arithmetic number, because the mean of its divisors is an integer number (5506709180).

Almost surely, 2^123329981700 is an apocalyptic number.

123329981700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123329981700 is an abundant number, since it is smaller than the sum of its proper divisors (273153079260).

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

123329981700 is a wasteful number, since it uses less digits than its factorization.

123329981700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45677794 (or 45677781 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 123329981700 in words is "one hundred twenty-three billion, three hundred twenty-nine million, nine hundred eighty-one thousand, seven hundred".