1145541100000 has 288 divisors, whose sum is σ = 3112489037952. Its totient is φ = 411508800000.

The previous prime is 1145541099961. The next prime is 1145541100021. The reversal of 1145541100000 is 11455411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 91293727 + ... + 91306273.

It is an arithmetic number, because the mean of its divisors is an integer number (10807253604).

Almost surely, 2^{1145541100000} is an apocalyptic number.

1145541100000 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 1145541100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1556244518976).

1145541100000 is an abundant number, since it is smaller than the sum of its proper divisors (1966947937952).

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

1145541100000 is an equidigital number, since it uses as much as digits as its factorization.

1145541100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12676 (or 12648 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 1145541100000 its reverse (11455411), we get a palindrome (1145552555411).

1145541100000 divided by its reverse (11455411) gives a 5-th power (100000 = 10⁵).

It can be divided in two parts, 1145 and 541100000, that added together give a palindrome (541101145).

The spelling of 1145541100000 in words is "one trillion, one hundred forty-five billion, five hundred forty-one million, one hundred thousand".