113211953 has 2 divisors, whose sum is σ = 113211954. Its totient is φ = 113211952.

The previous prime is 113211949. The next prime is 113212009. The reversal of 113211953 is 359112311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103897249 + 9314704 = 10193^2 + 3052^2 .

It is an emirp because it is prime and its reverse (359112311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113211953 - 2² = 113211949 is a prime.

It is not a weakly prime, because it can be changed into another prime (113231953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56605976 + 56605977.

It is an arithmetic number, because the mean of its divisors is an integer number (56605977).

Almost surely, 2^113211953 is an apocalyptic number.

It is an amenable number.

113211953 is a deficient number, since it is larger than the sum of its proper divisors (1).

113211953 is an equidigital number, since it uses as much as digits as its factorization.

113211953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 26.

The square root of 113211953 is about 10640.1105727337. The cubic root of 113211953 is about 483.7608969139.

The spelling of 113211953 in words is "one hundred thirteen million, two hundred eleven thousand, nine hundred fifty-three".