51317342003 has 4 divisors (see below), whose sum is σ = 54018254760. Its totient is φ = 48616429248.

The previous prime is 51317341987. The next prime is 51317342017. The reversal of 51317342003 is 30024371315.

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 51317342003 - 2⁴ = 51317341987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51317342023) 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, 1350456350 + ... + 1350456387.

It is an arithmetic number, because the mean of its divisors is an integer number (13504563690).

Almost surely, 2^51317342003 is an apocalyptic number.

51317342003 is a deficient number, since it is larger than the sum of its proper divisors (2700912757).

51317342003 is a wasteful number, since it uses less digits than its factorization.

51317342003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700912756.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 51317342003 in words is "fifty-one billion, three hundred seventeen million, three hundred forty-two thousand, three".