2031430403 has 16 divisors (see below), whose sum is σ = 2241533952. Its totient is φ = 1834536000.

The previous prime is 2031430397. The next prime is 2031430421. The reversal of 2031430403 is 3040341302.

It is a cyclic number.

It is not a de Polignac number, because 2031430403 - 2⁶ = 2031430339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031430433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5513 + ... + 63978.

It is an arithmetic number, because the mean of its divisors is an integer number (140095872).

Almost surely, 2^2031430403 is an apocalyptic number.

2031430403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2031430403 is a deficient number, since it is larger than the sum of its proper divisors (210103549).

2031430403 is a wasteful number, since it uses less digits than its factorization.

2031430403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69586.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2031430403 is about 45071.3922904540. The cubic root of 2031430403 is about 1266.4867463824.

Adding to 2031430403 its reverse (3040341302), we get a palindrome (5071771705).

The spelling of 2031430403 in words is "two billion, thirty-one million, four hundred thirty thousand, four hundred three".