51132434120 has 32 divisors (see below), whose sum is σ = 115422753600. Its totient is φ = 20386346688.

The previous prime is 51132434113. The next prime is 51132434141. The reversal of 51132434120 is 2143423115.

It is a happy number.

It is a super-2 number, since 2×51132434120² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51132434120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2069660 + ... + 2094219.

It is an arithmetic number, because the mean of its divisors is an integer number (3606961050).

Almost surely, 2^51132434120 is an apocalyptic number.

It is an amenable number.

51132434120 is an abundant number, since it is smaller than the sum of its proper divisors (64290319480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51132434120 is a wasteful number, since it uses less digits than its factorization.

51132434120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164197 (or 4164193 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 51132434120 its reverse (2143423115), we get a palindrome (53275857235).

The spelling of 51132434120 in words is "fifty-one billion, one hundred thirty-two million, four hundred thirty-four thousand, one hundred twenty".