124720404137900 has 18 divisors (see below), whose sum is σ = 270643276979460. Its totient is φ = 49888161655120.

The previous prime is 124720404137897. The next prime is 124720404137911. The reversal of 124720404137900 is 9731404027421.

It is a super-2 number, since 2×124720404137900² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623602020590 + ... + 623602020789.

It is an arithmetic number, because the mean of its divisors is an integer number (15035737609970).

Almost surely, 2^{124720404137900} is an apocalyptic number.

124720404137900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124720404137900 is an abundant number, since it is smaller than the sum of its proper divisors (145922872841560).

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

124720404137900 is a wasteful number, since it uses less digits than its factorization.

124720404137900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247204041393 (or 1247204041386 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 124720404137900 in words is "one hundred twenty-four trillion, seven hundred twenty billion, four hundred four million, one hundred thirty-seven thousand, nine hundred".