23311110031387 has 2 divisors, whose sum is σ = 23311110031388. Its totient is φ = 23311110031386.

The previous prime is 23311110031303. The next prime is 23311110031399. The reversal of 23311110031387 is 78313001111332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23311110031387 - 2²³ = 23311101642779 is a prime.

It is not a weakly prime, because it can be changed into another prime (23311110031087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655555015693 + 11655555015694.

It is an arithmetic number, because the mean of its divisors is an integer number (11655555015694).

Almost surely, 2^{23311110031387} is an apocalyptic number.

23311110031387 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311110031387 is an equidigital number, since it uses as much as digits as its factorization.

23311110031387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 23311110031387 in words is "twenty-three trillion, three hundred eleven billion, one hundred ten million, thirty-one thousand, three hundred eighty-seven".