23387283187 has 2 divisors, whose sum is σ = 23387283188. Its totient is φ = 23387283186.

The previous prime is 23387283173. The next prime is 23387283191. The reversal of 23387283187 is 78138278332.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23387283187 is a prime.

It is not a weakly prime, because it can be changed into another prime (23387283487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11693641593 + 11693641594.

It is an arithmetic number, because the mean of its divisors is an integer number (11693641594).

Almost surely, 2^23387283187 is an apocalyptic number.

23387283187 is a deficient number, since it is larger than the sum of its proper divisors (1).

23387283187 is an equidigital number, since it uses as much as digits as its factorization.

23387283187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 52.

The spelling of 23387283187 in words is "twenty-three billion, three hundred eighty-seven million, two hundred eighty-three thousand, one hundred eighty-seven".