113271721 has 2 divisors, whose sum is σ = 113271722. Its totient is φ = 113271720.

The previous prime is 113271713. The next prime is 113271727. The reversal of 113271721 is 127172311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86862400 + 26409321 = 9320^2 + 5139^2 .

It is a cyclic number.

It is not a de Polignac number, because 113271721 - 2³ = 113271713 is a prime.

It is not a weakly prime, because it can be changed into another prime (113271727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56635860 + 56635861.

It is an arithmetic number, because the mean of its divisors is an integer number (56635861).

Almost surely, 2^113271721 is an apocalyptic number.

It is an amenable number.

113271721 is a deficient number, since it is larger than the sum of its proper divisors (1).

113271721 is an equidigital number, since it uses as much as digits as its factorization.

113271721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588, while the sum is 25.

The square root of 113271721 is about 10642.9188195720. The cubic root of 113271721 is about 483.8460125869.

The spelling of 113271721 in words is "one hundred thirteen million, two hundred seventy-one thousand, seven hundred twenty-one".