111243304403 has 32 divisors (see below), whose sum is σ = 139786103808. Its totient is φ = 86001552000.

The previous prime is 111243304397. The next prime is 111243304423. The reversal of 111243304403 is 304403342111.

It is a happy number.

It is not a de Polignac number, because 111243304403 - 2⁴ = 111243304387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111243304423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8467826 + ... + 8480952.

It is an arithmetic number, because the mean of its divisors is an integer number (4368315744).

Almost surely, 2^111243304403 is an apocalyptic number.

111243304403 is a deficient number, since it is larger than the sum of its proper divisors (28542799405).

111243304403 is a wasteful number, since it uses less digits than its factorization.

111243304403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14003.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 111243304403 its reverse (304403342111), we get a palindrome (415646646514).

The spelling of 111243304403 in words is "one hundred eleven billion, two hundred forty-three million, three hundred four thousand, four hundred three".