2103031102321 has 4 divisors (see below), whose sum is σ = 2103667038832. Its totient is φ = 2102395165812.

The previous prime is 2103031102303. The next prime is 2103031102363. The reversal of 2103031102321 is 1232011303012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103031102321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103031102121) 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, 317963295 + ... + 317969908.

It is an arithmetic number, because the mean of its divisors is an integer number (525916759708).

Almost surely, 2^{2103031102321} is an apocalyptic number.

It is an amenable number.

2103031102321 is a deficient number, since it is larger than the sum of its proper divisors (635936511).

2103031102321 is an equidigital number, since it uses as much as digits as its factorization.

2103031102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635936510.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2103031102321 its reverse (1232011303012), we get a palindrome (3335042405333).

The spelling of 2103031102321 in words is "two trillion, one hundred three billion, thirty-one million, one hundred two thousand, three hundred twenty-one".