1121303223 has 32 divisors (see below), whose sum is σ = 1690360320. Its totient is φ = 734469120.

The previous prime is 1121303203. The next prime is 1121303233. The reversal of 1121303223 is 3223031211.

It is not a de Polignac number, because 1121303223 - 2⁸ = 1121302967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121303196 and 1121303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121303203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1159086 + ... + 1160052.

It is an arithmetic number, because the mean of its divisors is an integer number (52823760).

Almost surely, 2^1121303223 is an apocalyptic number.

1121303223 is a deficient number, since it is larger than the sum of its proper divisors (569057097).

1121303223 is an equidigital number, since it uses as much as digits as its factorization.

1121303223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1121303223 is about 33485.8660183666. The cubic root of 1121303223 is about 1038.9014605351.

Adding to 1121303223 its reverse (3223031211), we get a palindrome (4344334434).

The spelling of 1121303223 in words is "one billion, one hundred twenty-one million, three hundred three thousand, two hundred twenty-three".