32131312002 has 96 divisors (see below), whose sum is σ = 72484251840. Its totient is φ = 10279785600.

The previous prime is 32131312001. The next prime is 32131312013. The reversal of 32131312002 is 20021313123.

32131312002 is a `hidden beast` number, since 321 + 31 + 312 + 0 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (32131312001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10864708 + ... + 10867664.

It is an arithmetic number, because the mean of its divisors is an integer number (755044290).

Almost surely, 2^32131312002 is an apocalyptic number.

32131312002 is an abundant number, since it is smaller than the sum of its proper divisors (40352939838).

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

32131312002 is a wasteful number, since it uses less digits than its factorization.

32131312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248 (or 3245 counting only the distinct ones).

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

Adding to 32131312002 its reverse (20021313123), we get a palindrome (52152625125).

The spelling of 32131312002 in words is "thirty-two billion, one hundred thirty-one million, three hundred twelve thousand, two".