31300221232 has 40 divisors (see below), whose sum is σ = 72321014016. Its totient is φ = 12831145536.

The previous prime is 31300221223. The next prime is 31300221233. The reversal of 31300221232 is 23212200313.

It is not an unprimeable number, because it can be changed into a prime (31300221233) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6072778 + ... + 6077929.

Almost surely, 2^31300221232 is an apocalyptic number.

It is an amenable number.

31300221232 is an abundant number, since it is smaller than the sum of its proper divisors (41020792784).

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

31300221232 is a wasteful number, since it uses less digits than its factorization.

31300221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12150745 (or 12150739 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31300221232 its reverse (23212200313), we get a palindrome (54512421545).

The spelling of 31300221232 in words is "thirty-one billion, three hundred million, two hundred twenty-one thousand, two hundred thirty-two".