2013111202123 has 8 divisors (see below), whose sum is σ = 2300707167200. Its totient is φ = 1725517399680.

The previous prime is 2013111202073. The next prime is 2013111202127. The reversal of 2013111202123 is 3212021113102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2013111202123 - 2²¹ = 2013109104971 is a prime.

It is a super-2 number, since 2×2013111202123² (a number of 25 digits) contains 22 as substring.

It is the 1418842-nd Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2013111202123.

It is not an unprimeable number, because it can be changed into a prime (2013111202127) by changing a digit.

It is a nontrivial repunit in base 1418841.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2998963 + ... + 3608323.

It is an arithmetic number, because the mean of its divisors is an integer number (287588395900).

Almost surely, 2^{2013111202123} is an apocalyptic number.

2013111202123 is a deficient number, since it is larger than the sum of its proper divisors (287595965077).

2013111202123 is an equidigital number, since it uses as much as digits as its factorization.

2013111202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081317.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2013111202123 its reverse (3212021113102), we get a palindrome (5225132315225).

The spelling of 2013111202123 in words is "two trillion, thirteen billion, one hundred eleven million, two hundred two thousand, one hundred twenty-three".