51135035130 has 80 divisors (see below), whose sum is σ = 137637333504. Its totient is φ = 13622035680.

The previous prime is 51135035113. The next prime is 51135035209. The reversal of 51135035130 is 3153053115.

It is a super-2 number, since 2×51135035130² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 51135035094 and 51135035103.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 770859 + ... + 834561.

Almost surely, 2^51135035130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51135035130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68818666752).

51135035130 is an abundant number, since it is smaller than the sum of its proper divisors (86502298374).

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

51135035130 is a wasteful number, since it uses less digits than its factorization.

51135035130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64713 (or 64704 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

Adding to 51135035130 its reverse (3153053115), we get a palindrome (54288088245).

The spelling of 51135035130 in words is "fifty-one billion, one hundred thirty-five million, thirty-five thousand, one hundred thirty".