51011130042120 has 128 divisors (see below), whose sum is σ = 162373635763200. Its totient is φ = 12776065007616.

The previous prime is 51011130042113. The next prime is 51011130042157. The reversal of 51011130042120 is 2124003111015.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25124569 + ... + 27078888.

It is an arithmetic number, because the mean of its divisors is an integer number (1268544029400).

Almost surely, 2^{51011130042120} is an apocalyptic number.

It is an amenable number.

51011130042120 is an abundant number, since it is smaller than the sum of its proper divisors (111362505721080).

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

51011130042120 is a wasteful number, since it uses less digits than its factorization.

51011130042120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52203967 (or 52203963 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 51011130042120 its reverse (2124003111015), we get a palindrome (53135133153135).

The spelling of 51011130042120 in words is "fifty-one trillion, eleven billion, one hundred thirty million, forty-two thousand, one hundred twenty".