1131220222103 has 4 divisors (see below), whose sum is σ = 1131225004128. Its totient is φ = 1131215440080.

The previous prime is 1131220222087. The next prime is 1131220222157. The reversal of 1131220222103 is 3012220221311.

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 1131220222103 - 2⁴ = 1131220222087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131220222003) 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, 2016638 + ... + 2515803.

It is an arithmetic number, because the mean of its divisors is an integer number (282806251032).

Almost surely, 2^{1131220222103} is an apocalyptic number.

1131220222103 is a deficient number, since it is larger than the sum of its proper divisors (4782025).

1131220222103 is an equidigital number, since it uses as much as digits as its factorization.

1131220222103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782024.

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

Adding to 1131220222103 its reverse (3012220221311), we get a palindrome (4143440443414).

The spelling of 1131220222103 in words is "one trillion, one hundred thirty-one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred three".