1131223102000 has 480 divisors, whose sum is σ = 2996373219840. Its totient is φ = 412717939200.

The previous prime is 1131223101991. The next prime is 1131223102001. The reversal of 1131223102000 is 2013221311.

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

It is not an unprimeable number, because it can be changed into a prime (1131223102001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2576817781 + ... + 2576818219.

It is an arithmetic number, because the mean of its divisors is an integer number (6242444208).

Almost surely, 2^{1131223102000} is an apocalyptic number.

1131223102000 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 1131223102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498186609920).

1131223102000 is an abundant number, since it is smaller than the sum of its proper divisors (1865150117840).

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

1131223102000 is a wasteful number, since it uses less digits than its factorization.

1131223102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1131223102000 its reverse (2013221311), we get a palindrome (1133236323311).

The spelling of 1131223102000 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-three million, one hundred two thousand".