51430422131 has 12 divisors (see below), whose sum is σ = 56693919576. Its totient is φ = 46620150720.

The previous prime is 51430422101. The next prime is 51430422139. The reversal of 51430422131 is 13122403415.

It is a happy number.

It is not a de Polignac number, because 51430422131 - 2⁶ = 51430422067 is a prime.

It is a super-2 number, since 2×51430422131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51430422131.

It is not an unprimeable number, because it can be changed into a prime (51430422139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570470 + ... + 654443.

It is an arithmetic number, because the mean of its divisors is an integer number (4724493298).

Almost surely, 2^51430422131 is an apocalyptic number.

51430422131 is a deficient number, since it is larger than the sum of its proper divisors (5263497445).

51430422131 is a wasteful number, since it uses less digits than its factorization.

51430422131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225282 (or 1225271 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 51430422131 its reverse (13122403415), we get a palindrome (64552825546).

The spelling of 51430422131 in words is "fifty-one billion, four hundred thirty million, four hundred twenty-two thousand, one hundred thirty-one".