51400302323 has 4 divisors (see below), whose sum is σ = 51402323208. Its totient is φ = 51398281440.

The previous prime is 51400302307. The next prime is 51400302347. The reversal of 51400302323 is 32320300415.

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

It is a cyclic number.

It is not a de Polignac number, because 51400302323 - 2⁴ = 51400302307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51400302353) 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, 971798 + ... + 1023323.

It is an arithmetic number, because the mean of its divisors is an integer number (12850580802).

Almost surely, 2^51400302323 is an apocalyptic number.

51400302323 is a deficient number, since it is larger than the sum of its proper divisors (2020885).

51400302323 is a wasteful number, since it uses less digits than its factorization.

51400302323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020884.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 51400302323 its reverse (32320300415), we get a palindrome (83720602738).

The spelling of 51400302323 in words is "fifty-one billion, four hundred million, three hundred two thousand, three hundred twenty-three".