21123462623700 has 72 divisors (see below), whose sum is σ = 61118591784768. Its totient is φ = 5632796798720.

The previous prime is 21123462623687. The next prime is 21123462623743. The reversal of 21123462623700 is 732626432112.

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, 12981769 + ... + 14518031.

It is an arithmetic number, because the mean of its divisors is an integer number (848869330344).

Almost surely, 2^{21123462623700} is an apocalyptic number.

21123462623700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21123462623700 is an abundant number, since it is smaller than the sum of its proper divisors (39995129161068).

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

21123462623700 is a wasteful number, since it uses less digits than its factorization.

21123462623700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582113 (or 1582106 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 21123462623700 in words is "twenty-one trillion, one hundred twenty-three billion, four hundred sixty-two million, six hundred twenty-three thousand, seven hundred".