31425512234120 has 64 divisors (see below), whose sum is σ = 71513955216000. Its totient is φ = 12426865504768.

The previous prime is 31425512234047. The next prime is 31425512234183. The reversal of 31425512234120 is 2143221552413.

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, 20399669 + ... + 21886011.

It is an arithmetic number, because the mean of its divisors is an integer number (1117405550250).

Almost surely, 2^{31425512234120} 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 31425512234120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35756977608000).

31425512234120 is an abundant number, since it is smaller than the sum of its proper divisors (40088442981880).

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

31425512234120 is a wasteful number, since it uses less digits than its factorization.

31425512234120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492382 (or 1492378 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 31425512234120 its reverse (2143221552413), we get a palindrome (33568733786533).

The spelling of 31425512234120 in words is "thirty-one trillion, four hundred twenty-five billion, five hundred twelve million, two hundred thirty-four thousand, one hundred twenty".