23513244351 has 4 divisors (see below), whose sum is σ = 31350992472. Its totient is φ = 15675496232.

The previous prime is 23513244263. The next prime is 23513244361. The reversal of 23513244351 is 15344231532.

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

It is a cyclic number.

It is not a de Polignac number, because 23513244351 - 2²¹ = 23511147199 is a prime.

It is a super-2 number, since 2×23513244351² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23513244361) 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, 3918874056 + ... + 3918874061.

It is an arithmetic number, because the mean of its divisors is an integer number (7837748118).

Almost surely, 2^23513244351 is an apocalyptic number.

23513244351 is a deficient number, since it is larger than the sum of its proper divisors (7837748121).

23513244351 is an equidigital number, since it uses as much as digits as its factorization.

23513244351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837748120.

The product of its digits is 43200, while the sum is 33.

Adding to 23513244351 its reverse (15344231532), we get a palindrome (38857475883).

The spelling of 23513244351 in words is "twenty-three billion, five hundred thirteen million, two hundred forty-four thousand, three hundred fifty-one".