11315243544 has 64 divisors (see below), whose sum is σ = 31320397440. Its totient is φ = 3377679360.

The previous prime is 11315243539. The next prime is 11315243593. The reversal of 11315243544 is 44534251311.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302169 + ... + 337544.

It is an arithmetic number, because the mean of its divisors is an integer number (489381210).

Almost surely, 2^11315243544 is an apocalyptic number.

It is an amenable number.

11315243544 is an abundant number, since it is smaller than the sum of its proper divisors (20005153896).

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

11315243544 is a wasteful number, since it uses less digits than its factorization.

11315243544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639800 (or 639796 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

Adding to 11315243544 its reverse (44534251311), we get a palindrome (55849494855).

The spelling of 11315243544 in words is "eleven billion, three hundred fifteen million, two hundred forty-three thousand, five hundred forty-four".