2013123033311 has 4 divisors (see below), whose sum is σ = 2167978651272. Its totient is φ = 1858267415352.

The previous prime is 2013123033289. The next prime is 2013123033323. The reversal of 2013123033311 is 1133303213102.

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 2013123033311 - 2⁶ = 2013123033247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013123033391) 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, 77427808961 + ... + 77427808986.

It is an arithmetic number, because the mean of its divisors is an integer number (541994662818).

Almost surely, 2^{2013123033311} is an apocalyptic number.

2013123033311 is a deficient number, since it is larger than the sum of its proper divisors (154855617961).

2013123033311 is a wasteful number, since it uses less digits than its factorization.

2013123033311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154855617960.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 2013123033311 its reverse (1133303213102), we get a palindrome (3146426246413).

The spelling of 2013123033311 in words is "two trillion, thirteen billion, one hundred twenty-three million, thirty-three thousand, three hundred eleven".