112291931 has 2 divisors, whose sum is σ = 112291932. Its totient is φ = 112291930.

The previous prime is 112291897. The next prime is 112291937. The reversal of 112291931 is 139192211.

It is a strong prime.

It is an emirp because it is prime and its reverse (139192211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112291931 - 2⁶ = 112291867 is a prime.

It is a super-2 number, since 2×112291931² = 25218955535417522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112291894 and 112291903.

It is not a weakly prime, because it can be changed into another prime (112291937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56145965 + 56145966.

It is an arithmetic number, because the mean of its divisors is an integer number (56145966).

Almost surely, 2^112291931 is an apocalyptic number.

112291931 is a deficient number, since it is larger than the sum of its proper divisors (1).

112291931 is an equidigital number, since it uses as much as digits as its factorization.

112291931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 29.

The square root of 112291931 is about 10596.7887116805. The cubic root of 112291931 is about 482.4468961754.

The spelling of 112291931 in words is "one hundred twelve million, two hundred ninety-one thousand, nine hundred thirty-one".