113220491 has 2 divisors, whose sum is σ = 113220492. Its totient is φ = 113220490.

The previous prime is 113220461. The next prime is 113220529. The reversal of 113220491 is 194022311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113220491 - 2⁶ = 113220427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113220461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610245 + 56610246.

It is an arithmetic number, because the mean of its divisors is an integer number (56610246).

Almost surely, 2^113220491 is an apocalyptic number.

113220491 is a deficient number, since it is larger than the sum of its proper divisors (1).

113220491 is an equidigital number, since it uses as much as digits as its factorization.

113220491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 113220491 is about 10640.5117828044. The cubic root of 113220491 is about 483.7730577226.

The spelling of 113220491 in words is "one hundred thirteen million, two hundred twenty thousand, four hundred ninety-one".