2013123100523 has 2 divisors, whose sum is σ = 2013123100524. Its totient is φ = 2013123100522.

The previous prime is 2013123100519. The next prime is 2013123100561. The reversal of 2013123100523 is 3250013213102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2013123100523 - 2² = 2013123100519 is a prime.

It is not a weakly prime, because it can be changed into another prime (2013123100223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006561550261 + 1006561550262.

It is an arithmetic number, because the mean of its divisors is an integer number (1006561550262).

Almost surely, 2^{2013123100523} is an apocalyptic number.

2013123100523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013123100523 is an equidigital number, since it uses as much as digits as its factorization.

2013123100523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 2013123100523 its reverse (3250013213102), we get a palindrome (5263136313625).

The spelling of 2013123100523 in words is "two trillion, thirteen billion, one hundred twenty-three million, one hundred thousand, five hundred twenty-three".