31421530332332 has 18 divisors (see below), whose sum is σ = 63965258176932. Its totient is φ = 13466370142344.

The previous prime is 31421530332319. The next prime is 31421530332371. The reversal of 31421530332332 is 23323303512413.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31421530332292 and 31421530332301.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80156964938 + ... + 80156965329.

It is an arithmetic number, because the mean of its divisors is an integer number (3553625454274).

Almost surely, 2^{31421530332332} is an apocalyptic number.

It is an amenable number.

31421530332332 is an abundant number, since it is smaller than the sum of its proper divisors (32543727844600).

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

31421530332332 is a wasteful number, since it uses less digits than its factorization.

31421530332332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160313930285 (or 160313930276 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 35.

Adding to 31421530332332 its reverse (23323303512413), we get a palindrome (54744833844745).

The spelling of 31421530332332 in words is "thirty-one trillion, four hundred twenty-one billion, five hundred thirty million, three hundred thirty-two thousand, three hundred thirty-two".