1123611340 has 48 divisors (see below), whose sum is σ = 2405894400. Its totient is φ = 440664512.

The previous prime is 1123611221. The next prime is 1123611347. The reversal of 1123611340 is 431163211.

It is not an unprimeable number, because it can be changed into a prime (1123611347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550041 + ... + 552079.

It is an arithmetic number, because the mean of its divisors is an integer number (50122800).

Almost surely, 2^1123611340 is an apocalyptic number.

1123611340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123611340 is an abundant number, since it is smaller than the sum of its proper divisors (1282283060).

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

1123611340 is a wasteful number, since it uses less digits than its factorization.

1123611340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574 (or 2572 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1123611340 is about 33520.3123493800. The cubic root of 1123611340 is about 1039.6138050790.

Adding to 1123611340 its reverse (431163211), we get a palindrome (1554774551).

The spelling of 1123611340 in words is "one billion, one hundred twenty-three million, six hundred eleven thousand, three hundred forty".