23400212113 has 4 divisors (see below), whose sum is σ = 23491263780. Its totient is φ = 23309160448.

The previous prime is 23400212111. The next prime is 23400212117. The reversal of 23400212113 is 31121200432.

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 21274264449 + 2125947664 = 145857^2 + 46108^2 .

It is a cyclic number.

It is not a de Polignac number, because 23400212113 - 2¹ = 23400212111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23400212111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45525448 + ... + 45525961.

It is an arithmetic number, because the mean of its divisors is an integer number (5872815945).

Almost surely, 2^23400212113 is an apocalyptic number.

It is an amenable number.

23400212113 is a deficient number, since it is larger than the sum of its proper divisors (91051667).

23400212113 is an equidigital number, since it uses as much as digits as its factorization.

23400212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91051666.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23400212113 its reverse (31121200432), we get a palindrome (54521412545).

The spelling of 23400212113 in words is "twenty-three billion, four hundred million, two hundred twelve thousand, one hundred thirteen".