51001243340131 has 24 divisors (see below), whose sum is σ = 59996262483360. Its totient is φ = 43222958013312.

The previous prime is 51001243340087. The next prime is 51001243340143. The reversal of 51001243340131 is 13104334210015.

It is not a de Polignac number, because 51001243340131 - 2²¹ = 51001241242979 is a prime.

It is a super-2 number, since 2×51001243340131² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51001243340131.

It is not an unprimeable number, because it can be changed into a prime (51001243340171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177885865 + ... + 178172341.

It is an arithmetic number, because the mean of its divisors is an integer number (2499844270140).

Almost surely, 2^{51001243340131} is an apocalyptic number.

51001243340131 is a deficient number, since it is larger than the sum of its proper divisors (8995019143229).

51001243340131 is a wasteful number, since it uses less digits than its factorization.

51001243340131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327403 (or 327396 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 51001243340131 its reverse (13104334210015), we get a palindrome (64105577550146).

The spelling of 51001243340131 in words is "fifty-one trillion, one billion, two hundred forty-three million, three hundred forty thousand, one hundred thirty-one".