51031353423 has 16 divisors (see below), whose sum is σ = 73719714816. Its totient is φ = 31275027840.

The previous prime is 51031353409. The next prime is 51031353427. The reversal of 51031353423 is 32435313015.

It is not a de Polignac number, because 51031353423 - 2¹⁰ = 51031352399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51031353427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11632863 + ... + 11637248.

It is an arithmetic number, because the mean of its divisors is an integer number (4607482176).

Almost surely, 2^51031353423 is an apocalyptic number.

51031353423 is a deficient number, since it is larger than the sum of its proper divisors (22688361393).

51031353423 is a wasteful number, since it uses less digits than its factorization.

51031353423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23270174.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 51031353423 its reverse (32435313015), we get a palindrome (83466666438).

The spelling of 51031353423 in words is "fifty-one billion, thirty-one million, three hundred fifty-three thousand, four hundred twenty-three".