2031133240 has 16 divisors (see below), whose sum is σ = 4570049880. Its totient is φ = 812453280.

The previous prime is 2031133219. The next prime is 2031133249. The reversal of 2031133240 is 423311302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031133249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25389126 + ... + 25389205.

Almost surely, 2^2031133240 is an apocalyptic number.

2031133240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031133240 is an abundant number, since it is smaller than the sum of its proper divisors (2538916640).

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

2031133240 is a wasteful number, since it uses less digits than its factorization.

2031133240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50778342 (or 50778338 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2031133240 is about 45068.0955887865. The cubic root of 2031133240 is about 1266.4249883632.

Adding to 2031133240 its reverse (423311302), we get a palindrome (2454444542).

The spelling of 2031133240 in words is "two billion, thirty-one million, one hundred thirty-three thousand, two hundred forty".