131112000091 has 2 divisors, whose sum is σ = 131112000092. Its totient is φ = 131112000090.

The previous prime is 131112000073. The next prime is 131112000113. The reversal of 131112000091 is 190000211131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131112000091 is a prime.

It is not a weakly prime, because it can be changed into another prime (131112000391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65556000045 + 65556000046.

It is an arithmetic number, because the mean of its divisors is an integer number (65556000046).

Almost surely, 2^131112000091 is an apocalyptic number.

131112000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

131112000091 is an equidigital number, since it uses as much as digits as its factorization.

131112000091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

The spelling of 131112000091 in words is "one hundred thirty-one billion, one hundred twelve million, ninety-one", and thus it is an aban number.