51013230000 has 100 divisors (see below), whose sum is σ = 164677605048. Its totient is φ = 13603520000.

The previous prime is 51013229989. The next prime is 51013230049. The reversal of 51013230000 is 3231015.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 820221 + ... + 880220.

Almost surely, 2^51013230000 is an apocalyptic number.

51013230000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51013230000 is an abundant number, since it is smaller than the sum of its proper divisors (113664375048).

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

51013230000 is a wasteful number, since it uses less digits than its factorization.

51013230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700472 (or 1700451 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

Adding to 51013230000 its reverse (3231015), we get a palindrome (51016461015).

The spelling of 51013230000 in words is "fifty-one billion, thirteen million, two hundred thirty thousand".