13123311033311 has 4 divisors (see below), whose sum is σ = 13123318783824. Its totient is φ = 13123303282800.

The previous prime is 13123311033253. The next prime is 13123311033359. The reversal of 13123311033311 is 11333011332131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13123311033311 - 2³⁸ = 12848433126367 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 (13123311035311) 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, 126875 + ... + 5124716.

It is an arithmetic number, because the mean of its divisors is an integer number (3280829695956).

Almost surely, 2^{13123311033311} is an apocalyptic number.

13123311033311 is a deficient number, since it is larger than the sum of its proper divisors (7750513).

13123311033311 is an equidigital number, since it uses as much as digits as its factorization.

13123311033311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7750512.

The product of its (nonzero) digits is 1458, while the sum is 26.

Adding to 13123311033311 its reverse (11333011332131), we get a palindrome (24456322365442).

The spelling of 13123311033311 in words is "thirteen trillion, one hundred twenty-three billion, three hundred eleven million, thirty-three thousand, three hundred eleven".