31432313232 has 60 divisors (see below), whose sum is σ = 88745334444. Its totient is φ = 10384711680.

The previous prime is 31432313207. The next prime is 31432313243. The reversal of 31432313232 is 23231323413.

31432313232 is a `hidden beast` number, since 3 + 14 + 323 + 1 + 323 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15182182656 + 16250130576 = 123216^2 + 127476^2 .

It is a super-2 number, since 2×31432313232² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31432313196 and 31432313205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 949569 + ... + 982112.

Almost surely, 2^31432313232 is an apocalyptic number.

It is an amenable number.

31432313232 is an abundant number, since it is smaller than the sum of its proper divisors (57313021212).

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

31432313232 is a wasteful number, since it uses less digits than its factorization.

31432313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931808 (or 1931799 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 31432313232 its reverse (23231323413), we get a palindrome (54663636645).

The spelling of 31432313232 in words is "thirty-one billion, four hundred thirty-two million, three hundred thirteen thousand, two hundred thirty-two".