51232120345 has 8 divisors (see below), whose sum is σ = 70261193664. Its totient is φ = 35130596784.

The previous prime is 51232120327. The next prime is 51232120349. The reversal of 51232120345 is 54302123215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51232120345 - 2²⁷ = 51097902617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51232120349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731887399 + ... + 731887468.

It is an arithmetic number, because the mean of its divisors is an integer number (8782649208).

Almost surely, 2^51232120345 is an apocalyptic number.

It is an amenable number.

51232120345 is a deficient number, since it is larger than the sum of its proper divisors (19029073319).

51232120345 is a wasteful number, since it uses less digits than its factorization.

51232120345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463774879.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 51232120345 in words is "fifty-one billion, two hundred thirty-two million, one hundred twenty thousand, three hundred forty-five".