1121220103 has 2 divisors, whose sum is σ = 1121220104. Its totient is φ = 1121220102.

The previous prime is 1121220101. The next prime is 1121220157. The reversal of 1121220103 is 3010221211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121220103 - 2¹ = 1121220101 is a prime.

Together with 1121220101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121220101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560610051 + 560610052.

It is an arithmetic number, because the mean of its divisors is an integer number (560610052).

Almost surely, 2^1121220103 is an apocalyptic number.

1121220103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121220103 is an equidigital number, since it uses as much as digits as its factorization.

1121220103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1121220103 is about 33484.6248747093. The cubic root of 1121220103 is about 1038.8757893275.

Adding to 1121220103 its reverse (3010221211), we get a palindrome (4131441314).

The spelling of 1121220103 in words is "one billion, one hundred twenty-one million, two hundred twenty thousand, one hundred three".