1121510223 has 12 divisors (see below), whose sum is σ = 1621108320. Its totient is φ = 747143136.

The previous prime is 1121510191. The next prime is 1121510233. The reversal of 1121510223 is 3220151211.

It is not a de Polignac number, because 1121510223 - 2⁵ = 1121510191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121510196 and 1121510205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121510233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30583 + ... + 56376.

It is an arithmetic number, because the mean of its divisors is an integer number (135092360).

Almost surely, 2^1121510223 is an apocalyptic number.

1121510223 is a deficient number, since it is larger than the sum of its proper divisors (499598097).

1121510223 is a wasteful number, since it uses less digits than its factorization.

1121510223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88398 (or 88395 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1121510223 is about 33488.9567320333. The cubic root of 1121510223 is about 1038.9653859645.

Adding to 1121510223 its reverse (3220151211), we get a palindrome (4341661434).

The spelling of 1121510223 in words is "one billion, one hundred twenty-one million, five hundred ten thousand, two hundred twenty-three".