111421103403 has 8 divisors (see below), whose sum is σ = 148759292416. Its totient is φ = 74181825000.

The previous prime is 111421103383. The next prime is 111421103407. The reversal of 111421103403 is 304301124111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111421103403 - 2¹⁶ = 111421037867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111421103403.

It is not an unprimeable number, because it can be changed into a prime (111421103407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24725023 + ... + 24729528.

It is an arithmetic number, because the mean of its divisors is an integer number (18594911552).

Almost surely, 2^111421103403 is an apocalyptic number.

111421103403 is a deficient number, since it is larger than the sum of its proper divisors (37338189013).

111421103403 is an equidigital number, since it uses as much as digits as its factorization.

111421103403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49455305.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111421103403 its reverse (304301124111), we get a palindrome (415722227514).

The spelling of 111421103403 in words is "one hundred eleven billion, four hundred twenty-one million, one hundred three thousand, four hundred three".