31133133331232 has 24 divisors (see below), whose sum is σ = 61316066070000. Its totient is φ = 15560799091264.

The previous prime is 31133133331231. The next prime is 31133133331241. The reversal of 31133133331232 is 23213333133113.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (31133133331231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180148982 + ... + 180321717.

It is an arithmetic number, because the mean of its divisors is an integer number (2554836086250).

Almost surely, 2^{31133133331232} is an apocalyptic number.

31133133331232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31133133331232 is a deficient number, since it is larger than the sum of its proper divisors (30182932738768).

31133133331232 is a wasteful number, since it uses less digits than its factorization.

31133133331232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360473408 (or 360473400 counting only the distinct ones).

The product of its digits is 26244, while the sum is 32.

Adding to 31133133331232 its reverse (23213333133113), we get a palindrome (54346466464345).

The spelling of 31133133331232 in words is "thirty-one trillion, one hundred thirty-three billion, one hundred thirty-three million, three hundred thirty-one thousand, two hundred thirty-two".