1103121203111 has 2 divisors, whose sum is σ = 1103121203112. Its totient is φ = 1103121203110.

The previous prime is 1103121203099. The next prime is 1103121203137. The reversal of 1103121203111 is 1113021213011.

It is a weak prime.

It is an emirp because it is prime and its reverse (1113021213011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103121203111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103121203111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103121203141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551560601555 + 551560601556.

It is an arithmetic number, because the mean of its divisors is an integer number (551560601556).

Almost surely, 2^{1103121203111} is an apocalyptic number.

1103121203111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103121203111 is an equidigital number, since it uses as much as digits as its factorization.

1103121203111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1103121203111 its reverse (1113021213011), we get a palindrome (2216142416122).

The spelling of 1103121203111 in words is "one trillion, one hundred three billion, one hundred twenty-one million, two hundred three thousand, one hundred eleven".