51122331144312 has 64 divisors (see below), whose sum is σ = 127984637088000. Its totient is φ = 17016950304000.

The previous prime is 51122331144223. The next prime is 51122331144317. The reversal of 51122331144312 is 21344113322115.

It is a super-2 number, since 2×51122331144312² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51122331144317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56220133 + ... + 57122219.

It is an arithmetic number, because the mean of its divisors is an integer number (1999759954500).

Almost surely, 2^{51122331144312} is an apocalyptic number.

It is an amenable number.

51122331144312 is an abundant number, since it is smaller than the sum of its proper divisors (76862305943688).

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

51122331144312 is a wasteful number, since it uses less digits than its factorization.

51122331144312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905396 (or 905392 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

Adding to 51122331144312 its reverse (21344113322115), we get a palindrome (72466444466427).

The spelling of 51122331144312 in words is "fifty-one trillion, one hundred twenty-two billion, three hundred thirty-one million, one hundred forty-four thousand, three hundred twelve".