2103321413021 has 2 divisors, whose sum is σ = 2103321413022. Its totient is φ = 2103321413020.

The previous prime is 2103321412999. The next prime is 2103321413059. The reversal of 2103321413021 is 1203141233012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2080558147396 + 22763265625 = 1442414^2 + 150875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103321413021 - 2¹⁴ = 2103321396637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103321412021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051660706510 + 1051660706511.

It is an arithmetic number, because the mean of its divisors is an integer number (1051660706511).

Almost surely, 2^{2103321413021} is an apocalyptic number.

It is an amenable number.

2103321413021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103321413021 is an equidigital number, since it uses as much as digits as its factorization.

2103321413021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2103321413021 its reverse (1203141233012), we get a palindrome (3306462646033).

The spelling of 2103321413021 in words is "two trillion, one hundred three billion, three hundred twenty-one million, four hundred thirteen thousand, twenty-one".