2001402031 has 16 divisors (see below), whose sum is σ = 2146314240. Its totient is φ = 1860697440.

The previous prime is 2001402001. The next prime is 2001402041. The reversal of 2001402031 is 1302041002.

It is a cyclic number.

It is not a de Polignac number, because 2001402031 - 2⁵ = 2001401999 is a prime.

It is a super-2 number, since 2×2001402031² = 8011220179381849922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001402001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297501 + ... + 304153.

It is an arithmetic number, because the mean of its divisors is an integer number (134144640).

Almost surely, 2^2001402031 is an apocalyptic number.

2001402031 is a deficient number, since it is larger than the sum of its proper divisors (144912209).

2001402031 is a wasteful number, since it uses less digits than its factorization.

2001402031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966.

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

The square root of 2001402031 is about 44737.0319869345. The cubic root of 2001402031 is about 1260.2153891884.

Adding to 2001402031 its reverse (1302041002), we get a palindrome (3303443033).

The spelling of 2001402031 in words is "two billion, one million, four hundred two thousand, thirty-one".