23120031191 has 2 divisors, whose sum is σ = 23120031192. Its totient is φ = 23120031190.

The previous prime is 23120031169. The next prime is 23120031317. The reversal of 23120031191 is 19113002132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23120031191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23120031131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560015595 + 11560015596.

It is an arithmetic number, because the mean of its divisors is an integer number (11560015596).

Almost surely, 2^23120031191 is an apocalyptic number.

23120031191 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120031191 is an equidigital number, since it uses as much as digits as its factorization.

23120031191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 23120031191 in words is "twenty-three billion, one hundred twenty million, thirty-one thousand, one hundred ninety-one".