31023200132 has 12 divisors (see below), whose sum is σ = 54292618380. Its totient is φ = 15511023456.

The previous prime is 31023200113. The next prime is 31023200141. The reversal of 31023200132 is 23100232013.

It can be written as a sum of positive squares in 2 ways, for example, as 16875049216 + 14148150916 = 129904^2 + 118946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31023200132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9023 + ... + 249254.

It is an arithmetic number, because the mean of its divisors is an integer number (4524384865).

Almost surely, 2^31023200132 is an apocalyptic number.

It is an amenable number.

31023200132 is a deficient number, since it is larger than the sum of its proper divisors (23269418248).

31023200132 is a wasteful number, since it uses less digits than its factorization.

31023200132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288310 (or 288308 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31023200132 its reverse (23100232013), we get a palindrome (54123432145).

The spelling of 31023200132 in words is "thirty-one billion, twenty-three million, two hundred thousand, one hundred thirty-two".