51100135232512 has 44 divisors (see below), whose sum is σ = 102151370845216. Its totient is φ = 25549816780800.

The previous prime is 51100135232483. The next prime is 51100135232521. The reversal of 51100135232512 is 21523253100115.

It is a happy number.

It is a super-2 number, since 2×51100135232512² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147745093 + ... + 148090555.

It is an arithmetic number, because the mean of its divisors is an integer number (2321622064664).

Almost surely, 2^{51100135232512} is an apocalyptic number.

It is an amenable number.

51100135232512 is a deficient number, since it is larger than the sum of its proper divisors (51051235612704).

51100135232512 is a wasteful number, since it uses less digits than its factorization.

51100135232512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489934 (or 489916 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 51100135232512 its reverse (21523253100115), we get a palindrome (72623388332627).

The spelling of 51100135232512 in words is "fifty-one trillion, one hundred billion, one hundred thirty-five million, two hundred thirty-two thousand, five hundred twelve".