117265607021 has 2 divisors, whose sum is σ = 117265607022. Its totient is φ = 117265607020.

The previous prime is 117265607003. The next prime is 117265607023. The reversal of 117265607021 is 120706562711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109342648900 + 7922958121 = 330670^2 + 89011^2 .

It is a cyclic number.

It is not a de Polignac number, because 117265607021 - 2²² = 117261412717 is a prime.

Together with 117265607023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117265607023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58632803510 + 58632803511.

It is an arithmetic number, because the mean of its divisors is an integer number (58632803511).

Almost surely, 2^117265607021 is an apocalyptic number.

It is an amenable number.

117265607021 is a deficient number, since it is larger than the sum of its proper divisors (1).

117265607021 is an equidigital number, since it uses as much as digits as its factorization.

117265607021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 117265607021 in words is "one hundred seventeen billion, two hundred sixty-five million, six hundred seven thousand, twenty-one".