113312000021021 has 4 divisors (see below), whose sum is σ = 113312021518332. Its totient is φ = 113311978523712.

The previous prime is 113312000020981. The next prime is 113312000021039. The reversal of 113312000021021 is 120120000213311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1867557295396 + 111444442725625 = 1366586^2 + 10556725^2 .

It is a cyclic number.

It is not a de Polignac number, because 113312000021021 - 2³⁴ = 113294820151837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113312000021321) 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 in 3 ways as a sum of consecutive naturals, for example, 3138581 + ... + 15377733.

It is an arithmetic number, because the mean of its divisors is an integer number (28328005379583).

Almost surely, 2^{113312000021021} is an apocalyptic number.

It is an amenable number.

113312000021021 is a deficient number, since it is larger than the sum of its proper divisors (21497311).

113312000021021 is an equidigital number, since it uses as much as digits as its factorization.

113312000021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21497310.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 113312000021021 its reverse (120120000213311), we get a palindrome (233432000234332).

The spelling of 113312000021021 in words is "one hundred thirteen trillion, three hundred twelve billion, twenty-one thousand, twenty-one".