1123340136 has 16 divisors (see below), whose sum is σ = 2808350400. Its totient is φ = 374446704.

The previous prime is 1123340129. The next prime is 1123340137. The reversal of 1123340136 is 6310433211.

It is a happy number.

It is a super-2 number, since 2×1123340136² = 2523786122296996992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 46805839 = 1123340136 / (1 + 1 + 2 + 3 + 3 + 4 + 0 + 1 + 3 + 6).

It is not an unprimeable number, because it can be changed into a prime (1123340137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23402896 + ... + 23402943.

It is an arithmetic number, because the mean of its divisors is an integer number (175521900).

Almost surely, 2^1123340136 is an apocalyptic number.

It is an amenable number.

1123340136 is an abundant number, since it is smaller than the sum of its proper divisors (1685010264).

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

1123340136 is a wasteful number, since it uses less digits than its factorization.

1123340136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46805848 (or 46805844 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1123340136 is about 33516.2667372128. The cubic root of 1123340136 is about 1039.5301551253.

Adding to 1123340136 its reverse (6310433211), we get a palindrome (7433773347).

The spelling of 1123340136 in words is "one billion, one hundred twenty-three million, three hundred forty thousand, one hundred thirty-six".