111436513355971 has 2 divisors, whose sum is σ = 111436513355972. Its totient is φ = 111436513355970.

The previous prime is 111436513355857. The next prime is 111436513356029. The reversal of 111436513355971 is 179553315634111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111436513355971 is a prime.

It is a super-2 number, since 2×111436513355971² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111436513395971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55718256677985 + 55718256677986.

It is an arithmetic number, because the mean of its divisors is an integer number (55718256677986).

Almost surely, 2^{111436513355971} is an apocalyptic number.

111436513355971 is a deficient number, since it is larger than the sum of its proper divisors (1).

111436513355971 is an equidigital number, since it uses as much as digits as its factorization.

111436513355971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5103000, while the sum is 55.

The spelling of 111436513355971 in words is "one hundred eleven trillion, four hundred thirty-six billion, five hundred thirteen million, three hundred fifty-five thousand, nine hundred seventy-one".