31203201132 has 48 divisors (see below), whose sum is σ = 82423565280. Its totient is φ = 10204818624.

The previous prime is 31203201121. The next prime is 31203201151. The reversal of 31203201132 is 23110230213.

31203201132 is a `hidden beast` number, since 312 + 0 + 320 + 1 + 1 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 15 ways as a sum of consecutive naturals, for example, 2719923 + ... + 2731370.

It is an arithmetic number, because the mean of its divisors is an integer number (1717157610).

Almost surely, 2^31203201132 is an apocalyptic number.

It is an amenable number.

31203201132 is an abundant number, since it is smaller than the sum of its proper divisors (51220364148).

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

31203201132 is a wasteful number, since it uses less digits than its factorization.

31203201132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451359 (or 5451351 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31203201132 its reverse (23110230213), we get a palindrome (54313431345).

The spelling of 31203201132 in words is "thirty-one billion, two hundred three million, two hundred one thousand, one hundred thirty-two".