2031401331 has 24 divisors (see below), whose sum is σ = 3119609376. Its totient is φ = 1270938240.

The previous prime is 2031401327. The next prime is 2031401347. The reversal of 2031401331 is 1331041302.

2031401331 is a `hidden beast` number, since 20 + 314 + 0 + 1 + 331 = 666.

It is not a de Polignac number, because 2031401331 - 2² = 2031401327 is a prime.

It is a super-2 number, since 2×2031401331² = 8253182735177143122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2031401381) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 81610 + ... + 103551.

It is an arithmetic number, because the mean of its divisors is an integer number (129983724).

Almost surely, 2^2031401331 is an apocalyptic number.

2031401331 is a deficient number, since it is larger than the sum of its proper divisors (1088208045).

2031401331 is a wasteful number, since it uses less digits than its factorization.

2031401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185243 (or 185240 counting only the distinct ones).

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

The square root of 2031401331 is about 45071.0697787394. The cubic root of 2031401331 is about 1266.4807047482.

Adding to 2031401331 its reverse (1331041302), we get a palindrome (3362442633).

The spelling of 2031401331 in words is "two billion, thirty-one million, four hundred one thousand, three hundred thirty-one".