111213110210203 has 4 divisors (see below), whose sum is σ = 111213133346848. Its totient is φ = 111213087073560.

The previous prime is 111213110210003. The next prime is 111213110210243. The reversal of 111213110210203 is 302012011312111.

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 111213110210203 - 2¹⁷ = 111213110079131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111213110210243) 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, 1348803 + ... + 14974828.

It is an arithmetic number, because the mean of its divisors is an integer number (27803283336712).

Almost surely, 2^{111213110210203} is an apocalyptic number.

111213110210203 is a deficient number, since it is larger than the sum of its proper divisors (23136645).

111213110210203 is an equidigital number, since it uses as much as digits as its factorization.

111213110210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23136644.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 111213110210203 its reverse (302012011312111), we get a palindrome (413225121522314).

The spelling of 111213110210203 in words is "one hundred eleven trillion, two hundred thirteen billion, one hundred ten million, two hundred ten thousand, two hundred three".