2031320133 has 8 divisors (see below), whose sum is σ = 3009363200. Its totient is φ = 1354213404.

The previous prime is 2031320117. The next prime is 2031320143. The reversal of 2031320133 is 3310231302.

It is not a de Polignac number, because 2031320133 - 2⁴ = 2031320117 is a prime.

It is a super-2 number, since 2×2031320133² = 8252522965462275378, 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 (2031320143) 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, 37617013 + ... + 37617066.

It is an arithmetic number, because the mean of its divisors is an integer number (376170400).

Almost surely, 2^2031320133 is an apocalyptic number.

It is an amenable number.

2031320133 is a deficient number, since it is larger than the sum of its proper divisors (978043067).

2031320133 is an equidigital number, since it uses as much as digits as its factorization.

2031320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75234088 (or 75234082 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2031320133 is about 45070.1689923612. The cubic root of 2031320133 is about 1266.4638301784.

Adding to 2031320133 its reverse (3310231302), we get a palindrome (5341551435).

The spelling of 2031320133 in words is "two billion, thirty-one million, three hundred twenty thousand, one hundred thirty-three".