51140212112 has 20 divisors (see below), whose sum is σ = 108091812336. Its totient is φ = 23245550880.

The previous prime is 51140212043. The next prime is 51140212121. The reversal of 51140212112 is 21121204115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145284518 + ... + 145284869.

Almost surely, 2^51140212112 is an apocalyptic number.

It is an amenable number.

51140212112 is an abundant number, since it is smaller than the sum of its proper divisors (56951600224).

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

51140212112 is a wasteful number, since it uses less digits than its factorization.

51140212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290569406 (or 290569400 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 51140212112 its reverse (21121204115), we get a palindrome (72261416227).

The spelling of 51140212112 in words is "fifty-one billion, one hundred forty million, two hundred twelve thousand, one hundred twelve".