31303012232 has 8 divisors (see below), whose sum is σ = 58693147950. Its totient is φ = 15651506112.

The previous prime is 31303012207. The next prime is 31303012243. The reversal of 31303012232 is 23221030313.

It can be written as a sum of positive squares in only one way, i.e., 29917237156 + 1385775076 = 172966^2 + 37226^2 .

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

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, 1956438257 + ... + 1956438272.

Almost surely, 2^31303012232 is an apocalyptic number.

It is an amenable number.

31303012232 is a deficient number, since it is larger than the sum of its proper divisors (27390135718).

31303012232 is a wasteful number, since it uses less digits than its factorization.

31303012232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912876535 (or 3912876531 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31303012232 its reverse (23221030313), we get a palindrome (54524042545).

The spelling of 31303012232 in words is "thirty-one billion, three hundred three million, twelve thousand, two hundred thirty-two".