3201131988 has 30 divisors (see below), whose sum is σ = 8368392186. Its totient is φ = 1067043888.

The previous prime is 3201131987. The next prime is 3201132023. The reversal of 3201131988 is 8891311023.

3201131988 is a `hidden beast` number, since 320 + 11 + 319 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3182313744 + 18818244 = 56412^2 + 4338^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201131987) 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 9 ways as a sum of consecutive naturals, for example, 4939695 + ... + 4940342.

Almost surely, 2^3201131988 is an apocalyptic number.

It is an amenable number.

3201131988 is an abundant number, since it is smaller than the sum of its proper divisors (5167260198).

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

3201131988 is a wasteful number, since it uses less digits than its factorization.

3201131988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880053 (or 9880042 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 3201131988 is about 56578.5470651200. The cubic root of 3201131988 is about 1473.7863406147.

The spelling of 3201131988 in words is "three billion, two hundred one million, one hundred thirty-one thousand, nine hundred eighty-eight".