31323232232 has 8 divisors (see below), whose sum is σ = 58731060450. Its totient is φ = 15661616112.

The previous prime is 31323232201. The next prime is 31323232261. The reversal of 31323232232 is 23223232313.

It can be written as a sum of positive squares in only one way, i.e., 24365336836 + 6957895396 = 156094^2 + 83414^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×31323232232² (a number of 22 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1957702007 + ... + 1957702022.

Almost surely, 2^31323232232 is an apocalyptic number.

It is an amenable number.

31323232232 is a deficient number, since it is larger than the sum of its proper divisors (27407828218).

31323232232 is a wasteful number, since it uses less digits than its factorization.

31323232232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915404035 (or 3915404031 counting only the distinct ones).

The product of its digits is 7776, while the sum is 26.

Adding to 31323232232 its reverse (23223232313), we get a palindrome (54546464545).

The spelling of 31323232232 in words is "thirty-one billion, three hundred twenty-three million, two hundred thirty-two thousand, two hundred thirty-two".