11563203438234 has 48 divisors (see below), whose sum is σ = 29172933758592. Its totient is φ = 3241437080544.

The previous prime is 11563203438233. The next prime is 11563203438251. The reversal of 11563203438234 is 43283430236511.

It is a happy number.

11563203438234 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 3 + 203 + 438 + 2 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11563203438234.

It is not an unprimeable number, because it can be changed into a prime (11563203438233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865761774 + ... + 865775129.

It is an arithmetic number, because the mean of its divisors is an integer number (607769453304).

Almost surely, 2^{11563203438234} is an apocalyptic number.

11563203438234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11563203438234 is an abundant number, since it is smaller than the sum of its proper divisors (17609730320358).

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

11563203438234 is a wasteful number, since it uses less digits than its factorization.

11563203438234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731536971 (or 1731536968 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 11563203438234 in words is "eleven trillion, five hundred sixty-three billion, two hundred three million, four hundred thirty-eight thousand, two hundred thirty-four".