2330431021 has 4 divisors (see below), whose sum is σ = 2387270844. Its totient is φ = 2273591200.

The previous prime is 2330431013. The next prime is 2330431031. The reversal of 2330431021 is 1201340332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82628100 + 2247802921 = 9090^2 + 47411^2 .

It is a cyclic number.

It is not a de Polignac number, because 2330431021 - 2³ = 2330431013 is a prime.

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 2330431021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2330431031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28419850 + ... + 28419931.

It is an arithmetic number, because the mean of its divisors is an integer number (596817711).

Almost surely, 2^2330431021 is an apocalyptic number.

It is an amenable number.

2330431021 is a deficient number, since it is larger than the sum of its proper divisors (56839823).

2330431021 is an equidigital number, since it uses as much as digits as its factorization.

2330431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56839822.

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

The square root of 2330431021 is about 48274.5380195399. The cubic root of 2330431021 is about 1325.8022474750.

Adding to 2330431021 its reverse (1201340332), we get a palindrome (3531771353).

The spelling of 2330431021 in words is "two billion, three hundred thirty million, four hundred thirty-one thousand, twenty-one".