31132012300 has 72 divisors (see below), whose sum is σ = 68643731520. Its totient is φ = 12252820800.

The previous prime is 31132012271. The next prime is 31132012309. The reversal of 31132012300 is 321023113.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (31132012309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7307571 + ... + 7311829.

It is an arithmetic number, because the mean of its divisors is an integer number (953385160).

Almost surely, 2^31132012300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31132012300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34321865760).

31132012300 is an abundant number, since it is smaller than the sum of its proper divisors (37511719220).

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

31132012300 is a wasteful number, since it uses less digits than its factorization.

31132012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431 (or 5424 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31132012300 its reverse (321023113), we get a palindrome (31453035413).

The spelling of 31132012300 in words is "thirty-one billion, one hundred thirty-two million, twelve thousand, three hundred".