11203400234544 has 160 divisors (see below), whose sum is σ = 33436807050240. Its totient is φ = 3166310870016.

The previous prime is 11203400234527. The next prime is 11203400234563. The reversal of 11203400234544 is 44543200430211.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10962037 + ... + 11940395.

It is an arithmetic number, because the mean of its divisors is an integer number (208980044064).

Almost surely, 2^{11203400234544} is an apocalyptic number.

11203400234544 is a gapful number since it is divisible by the number (14) 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 11203400234544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16718403525120).

11203400234544 is an abundant number, since it is smaller than the sum of its proper divisors (22233406815696).

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

11203400234544 is a wasteful number, since it uses less digits than its factorization.

11203400234544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978747 (or 978741 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 11203400234544 its reverse (44543200430211), we get a palindrome (55746600664755).

The spelling of 11203400234544 in words is "eleven trillion, two hundred three billion, four hundred million, two hundred thirty-four thousand, five hundred forty-four".