31203130313424 has 160 divisors (see below), whose sum is σ = 87066783619200. Its totient is φ = 9597069803520.

The previous prime is 31203130313413. The next prime is 31203130313437. The reversal of 31203130313424 is 42431303130213.

It is a junction number, because it is equal to n+sod(n) for n = 31203130313391 and 31203130313400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21469842 + ... + 22877070.

It is an arithmetic number, because the mean of its divisors is an integer number (544167397620).

Almost surely, 2^{31203130313424} 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 31203130313424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43533391809600).

31203130313424 is an abundant number, since it is smaller than the sum of its proper divisors (55863653305776).

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

31203130313424 is a wasteful number, since it uses less digits than its factorization.

31203130313424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407893 (or 1407887 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 31203130313424 its reverse (42431303130213), we get a palindrome (73634433443637).

The spelling of 31203130313424 in words is "thirty-one trillion, two hundred three billion, one hundred thirty million, three hundred thirteen thousand, four hundred twenty-four".