123423520700 has 72 divisors (see below), whose sum is σ = 287816547312. Its totient is φ = 45771770880.

The previous prime is 123423520697. The next prime is 123423520721. The reversal of 123423520700 is 7025324321.

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, 427907 + ... + 655706.

It is an arithmetic number, because the mean of its divisors is an integer number (3997452046).

Almost surely, 2^123423520700 is an apocalyptic number.

123423520700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123423520700 is an abundant number, since it is smaller than the sum of its proper divisors (164393026612).

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

123423520700 is a wasteful number, since it uses less digits than its factorization.

123423520700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083711 (or 1083704 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The spelling of 123423520700 in words is "one hundred twenty-three billion, four hundred twenty-three million, five hundred twenty thousand, seven hundred".