112311721 has 2 divisors, whose sum is σ = 112311722. Its totient is φ = 112311720.

The previous prime is 112311701. The next prime is 112311733. The reversal of 112311721 is 127113211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99780121 + 12531600 = 9989^2 + 3540^2 .

It is a cyclic number.

It is not a de Polignac number, because 112311721 - 2⁹ = 112311209 is a prime.

It is a super-2 number, since 2×112311721² = 25227845347963682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112311701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56155860 + 56155861.

It is an arithmetic number, because the mean of its divisors is an integer number (56155861).

Almost surely, 2^112311721 is an apocalyptic number.

It is an amenable number.

112311721 is a deficient number, since it is larger than the sum of its proper divisors (1).

112311721 is an equidigital number, since it uses as much as digits as its factorization.

112311721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84, while the sum is 19.

The square root of 112311721 is about 10597.7224439971. The cubic root of 112311721 is about 482.4752361851.

Adding to 112311721 its reverse (127113211), we get a palindrome (239424932).

The spelling of 112311721 in words is "one hundred twelve million, three hundred eleven thousand, seven hundred twenty-one".