113004072721 has 2 divisors, whose sum is σ = 113004072722. Its totient is φ = 113004072720.

The previous prime is 113004072707. The next prime is 113004072743. The reversal of 113004072721 is 127270400311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94307339025 + 18696733696 = 307095^2 + 136736^2 .

It is a cyclic number.

It is not a de Polignac number, because 113004072721 - 2⁷ = 113004072593 is a prime.

It is a super-3 number, since 3×113004072721³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113004072721.

It is not a weakly prime, because it can be changed into another prime (113004072761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56502036360 + 56502036361.

It is an arithmetic number, because the mean of its divisors is an integer number (56502036361).

Almost surely, 2^113004072721 is an apocalyptic number.

It is an amenable number.

113004072721 is a deficient number, since it is larger than the sum of its proper divisors (1).

113004072721 is an equidigital number, since it uses as much as digits as its factorization.

113004072721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The spelling of 113004072721 in words is "one hundred thirteen billion, four million, seventy-two thousand, seven hundred twenty-one".