113533410478021 has 2 divisors, whose sum is σ = 113533410478022. Its totient is φ = 113533410478020.

The previous prime is 113533410477961. The next prime is 113533410478063. The reversal of 113533410478021 is 120874014335311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81249581961025 + 32283828516996 = 9013855^2 + 5681886^2 .

It is a cyclic number.

It is not a de Polignac number, because 113533410478021 - 2¹⁵ = 113533410445253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113533410478321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56766705239010 + 56766705239011.

It is an arithmetic number, because the mean of its divisors is an integer number (56766705239011).

Almost surely, 2^{113533410478021} is an apocalyptic number.

It is an amenable number.

113533410478021 is a deficient number, since it is larger than the sum of its proper divisors (1).

113533410478021 is an equidigital number, since it uses as much as digits as its factorization.

113533410478021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 113533410478021 in words is "one hundred thirteen trillion, five hundred thirty-three billion, four hundred ten million, four hundred seventy-eight thousand, twenty-one".