23042520031187 has 2 divisors, whose sum is σ = 23042520031188. Its totient is φ = 23042520031186.

The previous prime is 23042520031183. The next prime is 23042520031199. The reversal of 23042520031187 is 78113002524032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23042520031187 - 2² = 23042520031183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23042520031187.

It is not a weakly prime, because it can be changed into another prime (23042520031183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11521260015593 + 11521260015594.

It is an arithmetic number, because the mean of its divisors is an integer number (11521260015594).

Almost surely, 2^{23042520031187} is an apocalyptic number.

23042520031187 is a deficient number, since it is larger than the sum of its proper divisors (1).

23042520031187 is an equidigital number, since it uses as much as digits as its factorization.

23042520031187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 23042520031187 in words is "twenty-three trillion, forty-two billion, five hundred twenty million, thirty-one thousand, one hundred eighty-seven".