231117290007 has 4 divisors (see below), whose sum is σ = 308156386680. Its totient is φ = 154078193336.

The previous prime is 231117289973. The next prime is 231117290009. The reversal of 231117290007 is 700092711132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231117290007 - 2¹¹ = 231117287959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231117290007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231117290009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38519548332 + ... + 38519548337.

It is an arithmetic number, because the mean of its divisors is an integer number (77039096670).

Almost surely, 2^231117290007 is an apocalyptic number.

231117290007 is a deficient number, since it is larger than the sum of its proper divisors (77039096673).

231117290007 is an equidigital number, since it uses as much as digits as its factorization.

231117290007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77039096672.

The product of its (nonzero) digits is 5292, while the sum is 33.

The spelling of 231117290007 in words is "two hundred thirty-one billion, one hundred seventeen million, two hundred ninety thousand, seven".