13111013213 has 4 divisors (see below), whose sum is σ = 13801066560. Its totient is φ = 12420959868.

The previous prime is 13111013191. The next prime is 13111013239. The reversal of 13111013213 is 31231011131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13111013213 - 2¹² = 13111009117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13111013191 and 13111013200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111013243) 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, 345026645 + ... + 345026682.

It is an arithmetic number, because the mean of its divisors is an integer number (3450266640).

Almost surely, 2^13111013213 is an apocalyptic number.

It is an amenable number.

13111013213 is a deficient number, since it is larger than the sum of its proper divisors (690053347).

13111013213 is an equidigital number, since it uses as much as digits as its factorization.

13111013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690053346.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 13111013213 its reverse (31231011131), we get a palindrome (44342024344).

The spelling of 13111013213 in words is "thirteen billion, one hundred eleven million, thirteen thousand, two hundred thirteen".