51324100420120 has 64 divisors (see below), whose sum is σ = 129049955425440. Its totient is φ = 18208106572800.

The previous prime is 51324100419989. The next prime is 51324100420123. The reversal of 51324100420120 is 2102400142315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51324100420123) 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, 1422490287 + ... + 1422526366.

Almost surely, 2^{51324100420120} is an apocalyptic number.

It is an amenable number.

51324100420120 is an abundant number, since it is smaller than the sum of its proper divisors (77725855005320).

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

51324100420120 is a wasteful number, since it uses less digits than its factorization.

51324100420120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845016716 (or 2845016712 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 51324100420120 its reverse (2102400142315), we get a palindrome (53426500562435).

The spelling of 51324100420120 in words is "fifty-one trillion, three hundred twenty-four billion, one hundred million, four hundred twenty thousand, one hundred twenty".