31203133132 has 12 divisors (see below), whose sum is σ = 56488430880. Its totient is φ = 15063581456.

The previous prime is 31203133127. The next prime is 31203133139. The reversal of 31203133132 is 23133130213.

It is a super-2 number, since 2×31203133132² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31203133139) 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 3 ways as a sum of consecutive naturals, for example, 134496148 + ... + 134496379.

It is an arithmetic number, because the mean of its divisors is an integer number (4707369240).

Almost surely, 2^31203133132 is an apocalyptic number.

It is an amenable number.

31203133132 is a deficient number, since it is larger than the sum of its proper divisors (25285297748).

31203133132 is a wasteful number, since it uses less digits than its factorization.

31203133132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268992560 (or 268992558 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31203133132 its reverse (23133130213), we get a palindrome (54336263345).

The spelling of 31203133132 in words is "thirty-one billion, two hundred three million, one hundred thirty-three thousand, one hundred thirty-two".