11545040312 has 48 divisors (see below), whose sum is σ = 23538924000. Its totient is φ = 5306036736.

The previous prime is 11545040303. The next prime is 11545040327. The reversal of 11545040312 is 21304054511.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305264 + ... + 340992.

It is an arithmetic number, because the mean of its divisors is an integer number (490394250).

Almost surely, 2^11545040312 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 11545040312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11769462000).

11545040312 is an abundant number, since it is smaller than the sum of its proper divisors (11993883688).

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

11545040312 is a wasteful number, since it uses less digits than its factorization.

11545040312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36000 (or 35983 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 11545040312 its reverse (21304054511), we get a palindrome (32849094823).

The spelling of 11545040312 in words is "eleven billion, five hundred forty-five million, forty thousand, three hundred twelve".