1121331123 has 48 divisors (see below), whose sum is σ = 1838992896. Its totient is φ = 652441920.

The previous prime is 1121331119. The next prime is 1121331143. The reversal of 1121331123 is 3211331211.

1121331123 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1121331123 - 2² = 1121331119 is a prime.

It is a super-2 number, since 2×1121331123² = 2514766974816882258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121331096 and 1121331105.

It is not an unprimeable number, because it can be changed into a prime (1121331143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244336 + ... + 248882.

It is an arithmetic number, because the mean of its divisors is an integer number (38312352).

Almost surely, 2^1121331123 is an apocalyptic number.

1121331123 is a deficient number, since it is larger than the sum of its proper divisors (717661773).

1121331123 is a wasteful number, since it uses less digits than its factorization.

1121331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664 (or 4661 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 1121331123 is about 33486.2826094507. The cubic root of 1121331123 is about 1038.9100770299.

Adding to 1121331123 its reverse (3211331211), we get a palindrome (4332662334).

The spelling of 1121331123 in words is "one billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred twenty-three".