251341423023 has 4 divisors (see below), whose sum is σ = 335121897368. Its totient is φ = 167560948680.

The previous prime is 251341423019. The next prime is 251341423049. The reversal of 251341423023 is 320324143152.

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

It is not a de Polignac number, because 251341423023 - 2² = 251341423019 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 (251341423063) 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, 41890237168 + ... + 41890237173.

It is an arithmetic number, because the mean of its divisors is an integer number (83780474342).

Almost surely, 2^251341423023 is an apocalyptic number.

251341423023 is a deficient number, since it is larger than the sum of its proper divisors (83780474345).

251341423023 is an equidigital number, since it uses as much as digits as its factorization.

251341423023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83780474344.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 251341423023 its reverse (320324143152), we get a palindrome (571665566175).

The spelling of 251341423023 in words is "two hundred fifty-one billion, three hundred forty-one million, four hundred twenty-three thousand, twenty-three".