23120354113 has 4 divisors (see below), whose sum is σ = 23121072468. Its totient is φ = 23119635760.

The previous prime is 23120354111. The next prime is 23120354123. The reversal of 23120354113 is 31145302132.

It is a happy number.

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 5022840384 + 18097513729 = 70872^2 + 134527^2 .

It is a cyclic number.

It is not a de Polignac number, because 23120354113 - 2¹ = 23120354111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120354111) 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, 308518 + ... + 376063.

It is an arithmetic number, because the mean of its divisors is an integer number (5780268117).

Almost surely, 2^23120354113 is an apocalyptic number.

It is an amenable number.

23120354113 is a deficient number, since it is larger than the sum of its proper divisors (718355).

23120354113 is an equidigital number, since it uses as much as digits as its factorization.

23120354113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718354.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 23120354113 its reverse (31145302132), we get a palindrome (54265656245).

The spelling of 23120354113 in words is "twenty-three billion, one hundred twenty million, three hundred fifty-four thousand, one hundred thirteen".