251113232323 has 4 divisors (see below), whose sum is σ = 251314285000. Its totient is φ = 250912179648.

The previous prime is 251113232317. The next prime is 251113232339. The reversal of 251113232323 is 323232311152.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251113232323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 251113232291 and 251113232300.

It is not an unprimeable number, because it can be changed into a prime (251113232393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100524465 + ... + 100526962.

It is an arithmetic number, because the mean of its divisors is an integer number (62828571250).

Almost surely, 2^251113232323 is an apocalyptic number.

251113232323 is a deficient number, since it is larger than the sum of its proper divisors (201052677).

251113232323 is a wasteful number, since it uses less digits than its factorization.

251113232323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201052676.

The product of its digits is 6480, while the sum is 28.

Adding to 251113232323 its reverse (323232311152), we get a palindrome (574345543475).

The spelling of 251113232323 in words is "two hundred fifty-one billion, one hundred thirteen million, two hundred thirty-two thousand, three hundred twenty-three".