1113021131200 has 336 divisors, whose sum is σ = 3047079260160. Its totient is φ = 396771840000.

The previous prime is 1113021131197. The next prime is 1113021131237. The reversal of 1113021131200 is 21311203111.

It is a happy number.

It is a super-2 number, since 2×1113021131200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183089761 + ... + 183095839.

Almost surely, 2^{1113021131200} is an apocalyptic number.

1113021131200 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 1113021131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1523539630080).

1113021131200 is an abundant number, since it is smaller than the sum of its proper divisors (1934058128960).

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

1113021131200 is a wasteful number, since it uses less digits than its factorization.

1113021131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316 (or 6301 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1113021131200 its reverse (21311203111), we get a palindrome (1134332334311).

The spelling of 1113021131200 in words is "one trillion, one hundred thirteen billion, twenty-one million, one hundred thirty-one thousand, two hundred".