2003253431 has 4 divisors (see below), whose sum is σ = 2003708352. Its totient is φ = 2002798512.

The previous prime is 2003253419. The next prime is 2003253479. The reversal of 2003253431 is 1343523002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343523002 = 2 ⋅671761501.

It is a cyclic number.

It is not a de Polignac number, because 2003253431 - 2⁶ = 2003253367 is a prime.

It is a super-2 number, since 2×2003253431² = 8026048617626543522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003253397 and 2003253406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003255431) 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, 220790 + ... + 229683.

It is an arithmetic number, because the mean of its divisors is an integer number (500927088).

Almost surely, 2^2003253431 is an apocalyptic number.

2003253431 is a deficient number, since it is larger than the sum of its proper divisors (454921).

2003253431 is an equidigital number, since it uses as much as digits as its factorization.

2003253431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454920.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2003253431 is about 44757.7192336696. The cubic root of 2003253431 is about 1260.6038574843.

Adding to 2003253431 its reverse (1343523002), we get a palindrome (3346776433).

The spelling of 2003253431 in words is "two billion, three million, two hundred fifty-three thousand, four hundred thirty-one".