1131001231104 has 216 divisors, whose sum is σ = 3289600314000. Its totient is φ = 373695528960.

The previous prime is 1131001231099. The next prime is 1131001231127. The reversal of 1131001231104 is 4011321001311.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 370940172 + ... + 370943220.

Almost surely, 2^{1131001231104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131001231104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644800157000).

1131001231104 is an abundant number, since it is smaller than the sum of its proper divisors (2158599082896).

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

1131001231104 is a wasteful number, since it uses less digits than its factorization.

1131001231104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4431 (or 4414 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1131001231104 its reverse (4011321001311), we get a palindrome (5142322232415).

The spelling of 1131001231104 in words is "one trillion, one hundred thirty-one billion, one million, two hundred thirty-one thousand, one hundred four".