111243143413 has 4 divisors (see below), whose sum is σ = 113128620480. Its totient is φ = 109357666348.

The previous prime is 111243143411. The next prime is 111243143419. The reversal of 111243143413 is 314341342111.

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 111243143413 - 2¹ = 111243143411 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 (111243143411) 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, 942738445 + ... + 942738562.

It is an arithmetic number, because the mean of its divisors is an integer number (28282155120).

Almost surely, 2^111243143413 is an apocalyptic number.

It is an amenable number.

111243143413 is a deficient number, since it is larger than the sum of its proper divisors (1885477067).

111243143413 is an equidigital number, since it uses as much as digits as its factorization.

111243143413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885477066.

The product of its digits is 3456, while the sum is 28.

Adding to 111243143413 its reverse (314341342111), we get a palindrome (425584485524).

The spelling of 111243143413 in words is "one hundred eleven billion, two hundred forty-three million, one hundred forty-three thousand, four hundred thirteen".