1123114240 has 72 divisors (see below), whose sum is σ = 2696080968. Its totient is φ = 448266240.

The previous prime is 1123114193. The next prime is 1123114247. The reversal of 1123114240 is 424113211.

It can be written as a sum of positive squares in 4 ways, for example, as 13424896 + 1109689344 = 3664^2 + 33312^2 .

It is a super-2 number, since 2×1123114240² = 2522771192181555200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123114247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973504 + ... + 974656.

It is an arithmetic number, because the mean of its divisors is an integer number (37445569).

Almost surely, 2^1123114240 is an apocalyptic number.

1123114240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123114240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1348040484).

1123114240 is an abundant number, since it is smaller than the sum of its proper divisors (1572966728).

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

1123114240 is an equidigital number, since it uses as much as digits as its factorization.

1123114240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1123114240 is about 33512.8966220469. The cubic root of 1123114240 is about 1039.4604696582.

Adding to 1123114240 its reverse (424113211), we get a palindrome (1547227451).

The spelling of 1123114240 in words is "one billion, one hundred twenty-three million, one hundred fourteen thousand, two hundred forty".