2103013023121 has 4 divisors (see below), whose sum is σ = 2131821420772. Its totient is φ = 2074204625472.

The previous prime is 2103013023119. The next prime is 2103013023143. The reversal of 2103013023121 is 1213203103012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 829308920896 + 1273704102225 = 910664^2 + 1128585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103013023121 - 2¹ = 2103013023119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103013023721) 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, 14404198716 + ... + 14404198861.

It is an arithmetic number, because the mean of its divisors is an integer number (532955355193).

Almost surely, 2^{2103013023121} is an apocalyptic number.

It is an amenable number.

2103013023121 is a deficient number, since it is larger than the sum of its proper divisors (28808397651).

2103013023121 is an equidigital number, since it uses as much as digits as its factorization.

2103013023121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28808397650.

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

Adding to 2103013023121 its reverse (1213203103012), we get a palindrome (3316216126133).

The spelling of 2103013023121 in words is "two trillion, one hundred three billion, thirteen million, twenty-three thousand, one hundred twenty-one".