113311103021 has 2 divisors, whose sum is σ = 113311103022. Its totient is φ = 113311103020.

The previous prime is 113311103011. The next prime is 113311103023. The reversal of 113311103021 is 120301113311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75399118921 + 37911984100 = 274589^2 + 194710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113311103021 is a prime.

Together with 113311103023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113311103023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56655551510 + 56655551511.

It is an arithmetic number, because the mean of its divisors is an integer number (56655551511).

Almost surely, 2^113311103021 is an apocalyptic number.

It is an amenable number.

113311103021 is a deficient number, since it is larger than the sum of its proper divisors (1).

113311103021 is an equidigital number, since it uses as much as digits as its factorization.

113311103021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 113311103021 its reverse (120301113311), we get a palindrome (233612216332).

The spelling of 113311103021 in words is "one hundred thirteen billion, three hundred eleven million, one hundred three thousand, twenty-one".