124993335981 has 32 divisors (see below), whose sum is σ = 172832647680. Its totient is φ = 80296501824.

The previous prime is 124993335893. The next prime is 124993335997. The reversal of 124993335981 is 189533399421.

It is not a de Polignac number, because 124993335981 - 2¹⁰ = 124993334957 is a prime.

It is a super-2 number, since 2×124993335981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124993330981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7904575 + ... + 7920371.

It is an arithmetic number, because the mean of its divisors is an integer number (5401020240).

Almost surely, 2^124993335981 is an apocalyptic number.

It is an amenable number.

124993335981 is a deficient number, since it is larger than the sum of its proper divisors (47839311699).

124993335981 is a wasteful number, since it uses less digits than its factorization.

124993335981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16665.

The product of its digits is 6298560, while the sum is 57.

The spelling of 124993335981 in words is "one hundred twenty-four billion, nine hundred ninety-three million, three hundred thirty-five thousand, nine hundred eighty-one".