111143210203 has 2 divisors, whose sum is σ = 111143210204. Its totient is φ = 111143210202.

The previous prime is 111143210137. The next prime is 111143210251. The reversal of 111143210203 is 302012341111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111143210203 - 2²⁵ = 111109655771 is a prime.

It is not a weakly prime, because it can be changed into another prime (111143210603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55571605101 + 55571605102.

It is an arithmetic number, because the mean of its divisors is an integer number (55571605102).

Almost surely, 2^111143210203 is an apocalyptic number.

111143210203 is a deficient number, since it is larger than the sum of its proper divisors (1).

111143210203 is an equidigital number, since it uses as much as digits as its factorization.

111143210203 is an evil number, because the sum of its binary digits is even.

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

Adding to 111143210203 its reverse (302012341111), we get a palindrome (413155551314).

The spelling of 111143210203 in words is "one hundred eleven billion, one hundred forty-three million, two hundred ten thousand, two hundred three".