51431010312 has 96 divisors (see below), whose sum is σ = 142040808000. Its totient is φ = 15506663040.

The previous prime is 51431010311. The next prime is 51431010329. The reversal of 51431010312 is 21301013415.

It is not an unprimeable number, because it can be changed into a prime (51431010311) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 533398 + ... + 622394.

It is an arithmetic number, because the mean of its divisors is an integer number (1479591750).

Almost surely, 2^51431010312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51431010312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71020404000).

51431010312 is an abundant number, since it is smaller than the sum of its proper divisors (90609797688).

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

51431010312 is a wasteful number, since it uses less digits than its factorization.

51431010312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89227 (or 89212 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 51431010312 its reverse (21301013415), we get a palindrome (72732023727).

The spelling of 51431010312 in words is "fifty-one billion, four hundred thirty-one million, ten thousand, three hundred twelve".