2013243021223 has 4 divisors (see below), whose sum is σ = 2300849167120. Its totient is φ = 1725636875328.

The previous prime is 2013243021211. The next prime is 2013243021259. The reversal of 2013243021223 is 3221203423102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013243021223 is a prime.

It is a super-2 number, since 2×2013243021223² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013243025223) 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, 143803072938 + ... + 143803072951.

It is an arithmetic number, because the mean of its divisors is an integer number (575212291780).

Almost surely, 2^{2013243021223} is an apocalyptic number.

2013243021223 is a deficient number, since it is larger than the sum of its proper divisors (287606145897).

2013243021223 is an equidigital number, since it uses as much as digits as its factorization.

2013243021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287606145896.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2013243021223 its reverse (3221203423102), we get a palindrome (5234446444325).

The spelling of 2013243021223 in words is "two trillion, thirteen billion, two hundred forty-three million, twenty-one thousand, two hundred twenty-three".