2031243325 has 6 divisors (see below), whose sum is σ = 2518741754. Its totient is φ = 1624994640.

The previous prime is 2031243311. The next prime is 2031243329. The reversal of 2031243325 is 5233421302.

It can be written as a sum of positive squares in 3 ways, for example, as 490445316 + 1540798009 = 22146^2 + 39253^2 .

It is not a de Polignac number, because 2031243325 - 2¹⁵ = 2031210557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 81249733 = 2031243325 / (2 + 0 + 3 + 1 + 2 + 4 + 3 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031243325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031243329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40624842 + ... + 40624891.

Almost surely, 2^2031243325 is an apocalyptic number.

2031243325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2031243325 is a deficient number, since it is larger than the sum of its proper divisors (487498429).

2031243325 is an equidigital number, since it uses as much as digits as its factorization.

2031243325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81249743 (or 81249738 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2031243325 is about 45069.3168907628. The cubic root of 2031243325 is about 1266.4478675247.

Adding to 2031243325 its reverse (5233421302), we get a palindrome (7264664627).

The spelling of 2031243325 in words is "two billion, thirty-one million, two hundred forty-three thousand, three hundred twenty-five".