51630131121263 has 8 divisors (see below), whose sum is σ = 52506762633600. Its totient is φ = 50753551093848.

The previous prime is 51630131121229. The next prime is 51630131121277. The reversal of 51630131121263 is 36212113103615.

51630131121263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51630131121263 - 2¹² = 51630131117167 is a prime.

It is a super-2 number, since 2×51630131121263² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51630131121763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10845881 + ... + 14862482.

It is an arithmetic number, because the mean of its divisors is an integer number (6563345329200).

Almost surely, 2^{51630131121263} is an apocalyptic number.

51630131121263 is a deficient number, since it is larger than the sum of its proper divisors (876631512337).

51630131121263 is a wasteful number, since it uses less digits than its factorization.

51630131121263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25742461.

The product of its (nonzero) digits is 19440, while the sum is 35.

Adding to 51630131121263 its reverse (36212113103615), we get a palindrome (87842244224878).

The spelling of 51630131121263 in words is "fifty-one trillion, six hundred thirty billion, one hundred thirty-one million, one hundred twenty-one thousand, two hundred sixty-three".