111413421443 has 16 divisors (see below), whose sum is σ = 116821600896. Its totient is φ = 106134960960.

The previous prime is 111413421437. The next prime is 111413421473. The reversal of 111413421443 is 344124314111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111413421443 - 2¹² = 111413417347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111413421433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7049396 + ... + 7065182.

It is an arithmetic number, because the mean of its divisors is an integer number (7301350056).

Almost surely, 2^111413421443 is an apocalyptic number.

111413421443 is a deficient number, since it is larger than the sum of its proper divisors (5408179453).

111413421443 is a wasteful number, since it uses less digits than its factorization.

111413421443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19874.

The product of its digits is 4608, while the sum is 29.

Adding to 111413421443 its reverse (344124314111), we get a palindrome (455537735554).

The spelling of 111413421443 in words is "one hundred eleven billion, four hundred thirteen million, four hundred twenty-one thousand, four hundred forty-three".