111607206131 has 2 divisors, whose sum is σ = 111607206132. Its totient is φ = 111607206130.

The previous prime is 111607206119. The next prime is 111607206133. The reversal of 111607206131 is 131602706111.

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-111607206131 is a prime.

It is a super-2 number, since 2×111607206131² (a number of 23 digits) contains 22 as substring.

Together with 111607206133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 111607206094 and 111607206103.

It is not a weakly prime, because it can be changed into another prime (111607206133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55803603065 + 55803603066.

It is an arithmetic number, because the mean of its divisors is an integer number (55803603066).

Almost surely, 2^111607206131 is an apocalyptic number.

111607206131 is a deficient number, since it is larger than the sum of its proper divisors (1).

111607206131 is an equidigital number, since it uses as much as digits as its factorization.

111607206131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 111607206131 in words is "one hundred eleven billion, six hundred seven million, two hundred six thousand, one hundred thirty-one".