51031233423 has 6 divisors (see below), whose sum is σ = 73711781624. Its totient is φ = 34020822276.

The previous prime is 51031233413. The next prime is 51031233427. The reversal of 51031233423 is 32433213015.

51031233423 is a `hidden beast` number, since 5 + 1 + 0 + 3 + 1 + 233 + 423 = 666.

It is not a de Polignac number, because 51031233423 - 2⁶ = 51031233359 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 (51031233427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2835068515 + ... + 2835068532.

Almost surely, 2^51031233423 is an apocalyptic number.

51031233423 is a deficient number, since it is larger than the sum of its proper divisors (22680548201).

51031233423 is a wasteful number, since it uses less digits than its factorization.

51031233423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670137053 (or 5670137050 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 51031233423 its reverse (32433213015), we get a palindrome (83464446438).

The spelling of 51031233423 in words is "fifty-one billion, thirty-one million, two hundred thirty-three thousand, four hundred twenty-three".