4002002131 has 8 divisors (see below), whose sum is σ = 4151172080. Its totient is φ = 3855382272.

The previous prime is 4002002099. The next prime is 4002002141. The reversal of 4002002131 is 1312002004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4002002131 - 2⁵ = 4002002099 is a prime.

It is a super-2 number, since 2×4002002131² = 32032042113057082322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4002002141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634326 + ... + 640603.

It is an arithmetic number, because the mean of its divisors is an integer number (518896510).

Almost surely, 2^4002002131 is an apocalyptic number.

4002002131 is a deficient number, since it is larger than the sum of its proper divisors (149169949).

4002002131 is a wasteful number, since it uses less digits than its factorization.

4002002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275045.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4002002131 is about 63261.3794585607. The cubic root of 4002002131 is about 1587.6658565300.

Adding to 4002002131 its reverse (1312002004), we get a palindrome (5314004135).

The spelling of 4002002131 in words is "four billion, two million, two thousand, one hundred thirty-one".