113110000021 has 4 divisors (see below), whose sum is σ = 119763529452. Its totient is φ = 106456470592.

The previous prime is 113110000019. The next prime is 113110000037. The reversal of 113110000021 is 120000011311.

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 53842097521 + 59267902500 = 232039^2 + 243450^2 .

It is a cyclic number.

It is not a de Polignac number, because 113110000021 - 2¹ = 113110000019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113109999962 and 113110000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113110000321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3326764690 + ... + 3326764723.

It is an arithmetic number, because the mean of its divisors is an integer number (29940882363).

Almost surely, 2^113110000021 is an apocalyptic number.

It is an amenable number.

113110000021 is a deficient number, since it is larger than the sum of its proper divisors (6653529431).

113110000021 is an equidigital number, since it uses as much as digits as its factorization.

113110000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6653529430.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 113110000021 its reverse (120000011311), we get a palindrome (233110011332).

The spelling of 113110000021 in words is "one hundred thirteen billion, one hundred ten million, twenty-one", and thus it is an aban number.