111421120303 has 4 divisors (see below), whose sum is σ = 111685778968. Its totient is φ = 111156461640.

The previous prime is 111421120301. The next prime is 111421120339. The reversal of 111421120303 is 303021124111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303021124111 = 83 ⋅3650856917.

It is a cyclic number.

It is not a de Polignac number, because 111421120303 - 2¹ = 111421120301 is a prime.

It is a super-3 number, since 3×111421120303³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111421120301) 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, 132328701 + ... + 132329542.

It is an arithmetic number, because the mean of its divisors is an integer number (27921444742).

Almost surely, 2^111421120303 is an apocalyptic number.

111421120303 is a deficient number, since it is larger than the sum of its proper divisors (264658665).

111421120303 is an equidigital number, since it uses as much as digits as its factorization.

111421120303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264658664.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111421120303 its reverse (303021124111), we get a palindrome (414442244414).

The spelling of 111421120303 in words is "one hundred eleven billion, four hundred twenty-one million, one hundred twenty thousand, three hundred three".