23305743253 has 4 divisors (see below), whose sum is σ = 25098492748. Its totient is φ = 21512993760.

The previous prime is 23305743229. The next prime is 23305743277. The reversal of 23305743253 is 35234750332.

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

It is an interprime number because it is at equal distance from previous prime (23305743229) and next prime (23305743277).

It can be written as a sum of positive squares in 2 ways, for example, as 13358274084 + 9947469169 = 115578^2 + 99737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23305743253 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 (23335743253) 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, 896374728 + ... + 896374753.

It is an arithmetic number, because the mean of its divisors is an integer number (6274623187).

Almost surely, 2^23305743253 is an apocalyptic number.

It is an amenable number.

23305743253 is a deficient number, since it is larger than the sum of its proper divisors (1792749495).

23305743253 is a wasteful number, since it uses less digits than its factorization.

23305743253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792749494.

The product of its (nonzero) digits is 226800, while the sum is 37.

The spelling of 23305743253 in words is "twenty-three billion, three hundred five million, seven hundred forty-three thousand, two hundred fifty-three".