13112012443 has 4 divisors (see below), whose sum is σ = 13112830800. Its totient is φ = 13111194088.

The previous prime is 13112012437. The next prime is 13112012449. The reversal of 13112012443 is 34421021131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13112012437) and next prime (13112012449).

It is a cyclic number.

It is not a de Polignac number, because 13112012443 - 2¹³ = 13112004251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112012449) 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, 384655 + ... + 417352.

It is an arithmetic number, because the mean of its divisors is an integer number (3278207700).

Almost surely, 2^13112012443 is an apocalyptic number.

13112012443 is a deficient number, since it is larger than the sum of its proper divisors (818357).

13112012443 is an equidigital number, since it uses as much as digits as its factorization.

13112012443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818356.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13112012443 its reverse (34421021131), we get a palindrome (47533033574).

The spelling of 13112012443 in words is "thirteen billion, one hundred twelve million, twelve thousand, four hundred forty-three".