113110021213121 has 2 divisors, whose sum is σ = 113110021213122. Its totient is φ = 113110021213120.

The previous prime is 113110021213109. The next prime is 113110021213261. The reversal of 113110021213121 is 121312120011311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109341822008896 + 3768199204225 = 10456664^2 + 1941185^2 .

It is an emirp because it is prime and its reverse (121312120011311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113110021213121 - 2¹⁸ = 113110020950977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113110021213093 and 113110021213102.

It is not a weakly prime, because it can be changed into another prime (113110021273121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56555010606560 + 56555010606561.

It is an arithmetic number, because the mean of its divisors is an integer number (56555010606561).

Almost surely, 2^{113110021213121} is an apocalyptic number.

It is an amenable number.

113110021213121 is a deficient number, since it is larger than the sum of its proper divisors (1).

113110021213121 is an equidigital number, since it uses as much as digits as its factorization.

113110021213121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 113110021213121 its reverse (121312120011311), we get a palindrome (234422141224432).

The spelling of 113110021213121 in words is "one hundred thirteen trillion, one hundred ten billion, twenty-one million, two hundred thirteen thousand, one hundred twenty-one".