2003234621 has 4 divisors (see below), whose sum is σ = 2052094044. Its totient is φ = 1954375200.

The previous prime is 2003234579. The next prime is 2003234671. The reversal of 2003234621 is 1264323002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1264323002 = 2 ⋅632161501.

It can be written as a sum of positive squares in 2 ways, for example, as 436183225 + 1567051396 = 20885^2 + 39586^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003234621 - 2⁶ = 2003234557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003234671) 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, 24429650 + ... + 24429731.

It is an arithmetic number, because the mean of its divisors is an integer number (513023511).

Almost surely, 2^2003234621 is an apocalyptic number.

It is an amenable number.

2003234621 is a deficient number, since it is larger than the sum of its proper divisors (48859423).

2003234621 is an equidigital number, since it uses as much as digits as its factorization.

2003234621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48859422.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2003234621 is about 44757.5091018256. The cubic root of 2003234621 is about 1260.5999118971.

Adding to 2003234621 its reverse (1264323002), we get a palindrome (3267557623).

The spelling of 2003234621 in words is "two billion, three million, two hundred thirty-four thousand, six hundred twenty-one".