51030002331 has 192 divisors, whose sum is σ = 100324224000. Its totient is φ = 24690355200.

The previous prime is 51030002329. The next prime is 51030002339. The reversal of 51030002331 is 13320003015.

It is not a de Polignac number, because 51030002331 - 2¹ = 51030002329 is a prime.

It is a super-2 number, since 2×51030002331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51030002339) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 62921916 + ... + 62922726.

It is an arithmetic number, because the mean of its divisors is an integer number (522522000).

Almost surely, 2^51030002331 is an apocalyptic number.

51030002331 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51030002331 is a deficient number, since it is larger than the sum of its proper divisors (49294221669).

51030002331 is a wasteful number, since it uses less digits than its factorization.

51030002331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

Adding to 51030002331 its reverse (13320003015), we get a palindrome (64350005346).

The spelling of 51030002331 in words is "fifty-one billion, thirty million, two thousand, three hundred thirty-one".