100720055264731 has 48 divisors (see below), whose sum is σ = 126773937561600. Its totient is φ = 78227962059456.

The previous prime is 100720055264729. The next prime is 100720055264749. The reversal of 100720055264731 is 137462550027001.

It is a happy number.

It is not a de Polignac number, because 100720055264731 - 2¹ = 100720055264729 is a prime.

It is a super-2 number, since 2×100720055264731² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100720055214731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2287562425 + ... + 2287606453.

It is an arithmetic number, because the mean of its divisors is an integer number (2641123699200).

Almost surely, 2^{100720055264731} is an apocalyptic number.

100720055264731 is a deficient number, since it is larger than the sum of its proper divisors (26053882296869).

100720055264731 is a wasteful number, since it uses less digits than its factorization.

100720055264731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83456 (or 83437 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 100720055264731 in words is "one hundred trillion, seven hundred twenty billion, fifty-five million, two hundred sixty-four thousand, seven hundred thirty-one".