5131423403512 has 64 divisors (see below), whose sum is σ = 11106275581440. Its totient is φ = 2177113680000.

The previous prime is 5131423403507. The next prime is 5131423403521. The reversal of 5131423403512 is 2153043241315.

It is a super-2 number, since 2×5131423403512² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44777887 + ... + 44892337.

It is an arithmetic number, because the mean of its divisors is an integer number (173535555960).

Almost surely, 2^{5131423403512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5131423403512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5553137790720).

5131423403512 is an abundant number, since it is smaller than the sum of its proper divisors (5974852177928).

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

5131423403512 is a wasteful number, since it uses less digits than its factorization.

5131423403512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122492 (or 122488 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 5131423403512 its reverse (2153043241315), we get a palindrome (7284466644827).

The spelling of 5131423403512 in words is "five trillion, one hundred thirty-one billion, four hundred twenty-three million, four hundred three thousand, five hundred twelve".