2103534321 has 32 divisors (see below), whose sum is σ = 3434876928. Its totient is φ = 1117666560.

The previous prime is 2103534311. The next prime is 2103534383. The reversal of 2103534321 is 1234353012.

It is not a de Polignac number, because 2103534321 - 2²⁷ = 1969316593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2103534291 and 2103534300.

It is not an unprimeable number, because it can be changed into a prime (2103534311) 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 31 ways as a sum of consecutive naturals, for example, 5865 + ... + 65126.

It is an arithmetic number, because the mean of its divisors is an integer number (107339904).

Almost surely, 2^2103534321 is an apocalyptic number.

2103534321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2103534321 is a deficient number, since it is larger than the sum of its proper divisors (1331342607).

2103534321 is a wasteful number, since it uses less digits than its factorization.

2103534321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71101.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2103534321 is about 45864.3033414877. The cubic root of 2103534321 is about 1281.2971715141.

Adding to 2103534321 its reverse (1234353012), we get a palindrome (3337887333).

The spelling of 2103534321 in words is "two billion, one hundred three million, five hundred thirty-four thousand, three hundred twenty-one".