13100112331987 has 2 divisors, whose sum is σ = 13100112331988. Its totient is φ = 13100112331986.

The previous prime is 13100112331979. The next prime is 13100112332023. The reversal of 13100112331987 is 78913321100131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13100112331987 - 2³ = 13100112331979 is a prime.

It is a super-2 number, since 2×13100112331987² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13100112331967) 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, 6550056165993 + 6550056165994.

It is an arithmetic number, because the mean of its divisors is an integer number (6550056165994).

Almost surely, 2^{13100112331987} is an apocalyptic number.

13100112331987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13100112331987 is an equidigital number, since it uses as much as digits as its factorization.

13100112331987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 13100112331987 in words is "thirteen trillion, one hundred billion, one hundred twelve million, three hundred thirty-one thousand, nine hundred eighty-seven".