111143443312403 has 4 divisors (see below), whose sum is σ = 111143786660088. Its totient is φ = 111143099964720.

The previous prime is 111143443312361. The next prime is 111143443312469. The reversal of 111143443312403 is 304213344341111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111143443312403 - 2²⁴ = 111143426535187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111143443312703) 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, 171187826 + ... + 171835847.

It is an arithmetic number, because the mean of its divisors is an integer number (27785946665022).

Almost surely, 2^{111143443312403} is an apocalyptic number.

111143443312403 is a deficient number, since it is larger than the sum of its proper divisors (343347685).

111143443312403 is an equidigital number, since it uses as much as digits as its factorization.

111143443312403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343347684.

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 111143443312403 its reverse (304213344341111), we get a palindrome (415356787653514).

The spelling of 111143443312403 in words is "one hundred eleven trillion, one hundred forty-three billion, four hundred forty-three million, three hundred twelve thousand, four hundred three".