2013121102423 has 4 divisors (see below), whose sum is σ = 2013377853168. Its totient is φ = 2012864351680.

The previous prime is 2013121102411. The next prime is 2013121102429. The reversal of 2013121102423 is 3242011213102.

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 2013121102423 - 2⁹ = 2013121101911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2013121102394 and 2013121102403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013121102429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128363611 + ... + 128379292.

It is an arithmetic number, because the mean of its divisors is an integer number (503344463292).

Almost surely, 2^{2013121102423} is an apocalyptic number.

2013121102423 is a deficient number, since it is larger than the sum of its proper divisors (256750745).

2013121102423 is an equidigital number, since it uses as much as digits as its factorization.

2013121102423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256750744.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2013121102423 its reverse (3242011213102), we get a palindrome (5255132315525).

The spelling of 2013121102423 in words is "two trillion, thirteen billion, one hundred twenty-one million, one hundred two thousand, four hundred twenty-three".