124720135130 has 16 divisors (see below), whose sum is σ = 226482937704. Its totient is φ = 49446566400.

The previous prime is 124720135109. The next prime is 124720135147. The reversal of 124720135130 is 31531027421.

It can be written as a sum of positive squares in 4 ways, for example, as 103017247369 + 21702887761 = 320963^2 + 147319^2 .

It is a super-2 number, since 2×124720135130² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124720135093 and 124720135102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55184771 + ... + 55187030.

Almost surely, 2^124720135130 is an apocalyptic number.

124720135130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124720135130 is a deficient number, since it is larger than the sum of its proper divisors (101762802574).

124720135130 is a wasteful number, since it uses less digits than its factorization.

124720135130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110371921.

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 124720135130 in words is "one hundred twenty-four billion, seven hundred twenty million, one hundred thirty-five thousand, one hundred thirty".