1101221403203 has 2 divisors, whose sum is σ = 1101221403204. Its totient is φ = 1101221403202.

The previous prime is 1101221403169. The next prime is 1101221403223. The reversal of 1101221403203 is 3023041221011.

It is an a-pointer prime, because the next prime (1101221403223) can be obtained adding 1101221403203 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101221403203 - 2⁸ = 1101221402947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101221403223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550610701601 + 550610701602.

It is an arithmetic number, because the mean of its divisors is an integer number (550610701602).

Almost surely, 2^{1101221403203} is an apocalyptic number.

1101221403203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101221403203 is an equidigital number, since it uses as much as digits as its factorization.

1101221403203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1101221403203 its reverse (3023041221011), we get a palindrome (4124262624214).

The spelling of 1101221403203 in words is "one trillion, one hundred one billion, two hundred twenty-one million, four hundred three thousand, two hundred three".