1123412013200 has 360 divisors, whose sum is σ = 2974778482944. Its totient is φ = 407190528000.

The previous prime is 1123412013131. The next prime is 1123412013233. The reversal of 1123412013200 is 23102143211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 813476510 + ... + 813477890.

Almost surely, 2^{1123412013200} is an apocalyptic number.

1123412013200 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 1123412013200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1487389241472).

1123412013200 is an abundant number, since it is smaller than the sum of its proper divisors (1851366469744).

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

1123412013200 is a wasteful number, since it uses less digits than its factorization.

1123412013200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1123412013200 its reverse (23102143211), we get a palindrome (1146514156411).

The spelling of 1123412013200 in words is "one trillion, one hundred twenty-three billion, four hundred twelve million, thirteen thousand, two hundred".