100720031725073 has 2 divisors, whose sum is σ = 100720031725074. Its totient is φ = 100720031725072.

The previous prime is 100720031725067. The next prime is 100720031725123. The reversal of 100720031725073 is 370527130027001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100570651794064 + 149379931009 = 10028492^2 + 386497^2 .

It is a cyclic number.

It is not a de Polignac number, because 100720031725073 - 2⁴ = 100720031725057 is a prime.

It is not a weakly prime, because it can be changed into another prime (100720031725003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50360015862536 + 50360015862537.

It is an arithmetic number, because the mean of its divisors is an integer number (50360015862537).

Almost surely, 2^{100720031725073} is an apocalyptic number.

It is an amenable number.

100720031725073 is a deficient number, since it is larger than the sum of its proper divisors (1).

100720031725073 is an equidigital number, since it uses as much as digits as its factorization.

100720031725073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 38.

The spelling of 100720031725073 in words is "one hundred trillion, seven hundred twenty billion, thirty-one million, seven hundred twenty-five thousand, seventy-three".