13212112013 has 4 divisors (see below), whose sum is σ = 13212352608. Its totient is φ = 13211871420.

The previous prime is 13212111971. The next prime is 13212112031. The reversal of 13212112013 is 31021121231.

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 13212112013 - 2⁶ = 13212111949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13212111982 and 13212112000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212112063) 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, 6920 + ... + 162702.

It is an arithmetic number, because the mean of its divisors is an integer number (3303088152).

Almost surely, 2^13212112013 is an apocalyptic number.

It is an amenable number.

13212112013 is a deficient number, since it is larger than the sum of its proper divisors (240595).

13212112013 is an equidigital number, since it uses as much as digits as its factorization.

13212112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240594.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13212112013 its reverse (31021121231), we get a palindrome (44233233244).

The spelling of 13212112013 in words is "thirteen billion, two hundred twelve million, one hundred twelve thousand, thirteen".