1121235126 has 48 divisors (see below), whose sum is σ = 2483075952. Its totient is φ = 337258240.

The previous prime is 1121235041. The next prime is 1121235127. The reversal of 1121235126 is 6215321211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1121235096 and 1121235105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121235127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93826 + ... + 105098.

It is an arithmetic number, because the mean of its divisors is an integer number (51730749).

Almost surely, 2^1121235126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121235126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241537976).

1121235126 is an abundant number, since it is smaller than the sum of its proper divisors (1361840826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121235126 is a wasteful number, since it uses less digits than its factorization.

1121235126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11437 (or 11426 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 1121235126 is about 33484.8492007953. The cubic root of 1121235126 is about 1038.8804292019.

Adding to 1121235126 its reverse (6215321211), we get a palindrome (7336556337).

The spelling of 1121235126 in words is "one billion, one hundred twenty-one million, two hundred thirty-five thousand, one hundred twenty-six".