2101032403 has 4 divisors (see below), whose sum is σ = 2103238008. Its totient is φ = 2098826800.

The previous prime is 2101032389. The next prime is 2101032433. The reversal of 2101032403 is 3042301012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2101032403 - 2⁵ = 2101032371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101032433) 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, 1101373 + ... + 1103278.

It is an arithmetic number, because the mean of its divisors is an integer number (525809502).

Almost surely, 2^2101032403 is an apocalyptic number.

2101032403 is a deficient number, since it is larger than the sum of its proper divisors (2205605).

2101032403 is an equidigital number, since it uses as much as digits as its factorization.

2101032403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205604.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2101032403 is about 45837.0200056679. The cubic root of 2101032403 is about 1280.7889835872.

Adding to 2101032403 its reverse (3042301012), we get a palindrome (5143333415).

The spelling of 2101032403 in words is "two billion, one hundred one million, thirty-two thousand, four hundred three".