1123122311200 has 36 divisors (see below), whose sum is σ = 2741822344170. Its totient is φ = 449248924160.

The previous prime is 1123122311197. The next prime is 1123122311221. The reversal of 1123122311200 is 21132213211.

It can be written as a sum of positive squares in 3 ways, for example, as 1008875607184 + 114246704016 = 1004428^2 + 338004^2 .

It is a super-2 number, since 2×1123122311200² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701950645 + ... + 701952244.

Almost surely, 2^{1123122311200} is an apocalyptic number.

1123122311200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123122311200 is an abundant number, since it is smaller than the sum of its proper divisors (1618700032970).

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

1123122311200 is a wasteful number, since it uses less digits than its factorization.

1123122311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403902909 (or 1403902896 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1123122311200 its reverse (21132213211), we get a palindrome (1144254524411).

The spelling of 1123122311200 in words is "one trillion, one hundred twenty-three billion, one hundred twenty-two million, three hundred eleven thousand, two hundred".