113021947 has 2 divisors, whose sum is σ = 113021948. Its totient is φ = 113021946.

The previous prime is 113021941. The next prime is 113021971. The reversal of 113021947 is 749120311.

It is a weak prime.

It is an emirp because it is prime and its reverse (749120311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113021947 - 2⁷ = 113021819 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113021941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56510973 + 56510974.

It is an arithmetic number, because the mean of its divisors is an integer number (56510974).

Almost surely, 2^113021947 is an apocalyptic number.

113021947 is a deficient number, since it is larger than the sum of its proper divisors (1).

113021947 is an equidigital number, since it uses as much as digits as its factorization.

113021947 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 28.

The square root of 113021947 is about 10631.1780626608. The cubic root of 113021947 is about 483.4901100082.

The spelling of 113021947 in words is "one hundred thirteen million, twenty-one thousand, nine hundred forty-seven".