51232120342 has 8 divisors (see below), whose sum is σ = 82759579056. Its totient is φ = 23645593992.

The previous prime is 51232120327. The next prime is 51232120349. The reversal of 51232120342 is 24302123215.

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

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 985233058 + ... + 985233109.

It is an arithmetic number, because the mean of its divisors is an integer number (10344947382).

Almost surely, 2^51232120342 is an apocalyptic number.

51232120342 is a deficient number, since it is larger than the sum of its proper divisors (31527458714).

51232120342 is a wasteful number, since it uses less digits than its factorization.

51232120342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970466182.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 51232120342 its reverse (24302123215), we get a palindrome (75534243557).

The spelling of 51232120342 in words is "fifty-one billion, two hundred thirty-two million, one hundred twenty thousand, three hundred forty-two".