31442203332 has 72 divisors (see below), whose sum is σ = 82252497600. Its totient is φ = 10115275968.

The previous prime is 31442203279. The next prime is 31442203349. The reversal of 31442203332 is 23330224413.

It is a super-2 number, since 2×31442203332² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31442203296 and 31442203305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3677919 + ... + 3686457.

It is an arithmetic number, because the mean of its divisors is an integer number (1142395800).

Almost surely, 2^31442203332 is an apocalyptic number.

It is an amenable number.

31442203332 is an abundant number, since it is smaller than the sum of its proper divisors (50810294268).

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

31442203332 is a wasteful number, since it uses less digits than its factorization.

31442203332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12105 (or 12100 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31442203332 its reverse (23330224413), we get a palindrome (54772427745).

The spelling of 31442203332 in words is "thirty-one billion, four hundred forty-two million, two hundred three thousand, three hundred thirty-two".