1123254000 has 640 divisors, whose sum is σ = 4605419520. Its totient is φ = 259200000.

The previous prime is 1123253983. The next prime is 1123254019. The reversal of 1123254000 is 4523211.

1123254000 is a `hidden beast` number, since 1 + 123 + 2 + 540 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18413970 + ... + 18414030.

It is an arithmetic number, because the mean of its divisors is an integer number (7195968).

Almost surely, 2^1123254000 is an apocalyptic number.

1123254000 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 1123254000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2302709760).

1123254000 is an abundant number, since it is smaller than the sum of its proper divisors (3482165520).

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

1123254000 is a wasteful number, since it uses less digits than its factorization.

1123254000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1123254000 is about 33514.9817245959. The cubic root of 1123254000 is about 1039.5035845865.

Adding to 1123254000 its reverse (4523211), we get a palindrome (1127777211).

The spelling of 1123254000 in words is "one billion, one hundred twenty-three million, two hundred fifty-four thousand".