1121085203 has 16 divisors (see below), whose sum is σ = 1310247360. Its totient is φ = 939309696.

The previous prime is 1121085191. The next prime is 1121085223. The reversal of 1121085203 is 3025801211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1121085203 - 2²² = 1116890899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121085223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97313 + ... + 108221.

It is an arithmetic number, because the mean of its divisors is an integer number (81890460).

Almost surely, 2^1121085203 is an apocalyptic number.

1121085203 is a deficient number, since it is larger than the sum of its proper divisors (189162157).

1121085203 is a wasteful number, since it uses less digits than its factorization.

1121085203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11246.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1121085203 is about 33482.6104567729. The cubic root of 1121085203 is about 1038.8341234184.

Adding to 1121085203 its reverse (3025801211), we get a palindrome (4146886414).

The spelling of 1121085203 in words is "one billion, one hundred twenty-one million, eighty-five thousand, two hundred three".