10111121203 has 2 divisors, whose sum is σ = 10111121204. Its totient is φ = 10111121202.

The previous prime is 10111121201. The next prime is 10111121227. The reversal of 10111121203 is 30212111101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10111121203 - 2¹ = 10111121201 is a prime.

Together with 10111121201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10111121201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055560601 + 5055560602.

It is an arithmetic number, because the mean of its divisors is an integer number (5055560602).

Almost surely, 2^10111121203 is an apocalyptic number.

10111121203 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111121203 is an equidigital number, since it uses as much as digits as its factorization.

10111121203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10111121203 its reverse (30212111101), we get a palindrome (40323232304).

The spelling of 10111121203 in words is "ten billion, one hundred eleven million, one hundred twenty-one thousand, two hundred three".