11431204554 has 96 divisors (see below), whose sum is σ = 29454064128. Its totient is φ = 2873253600.

The previous prime is 11431204471. The next prime is 11431204573. The reversal of 11431204554 is 45540213411.

11431204554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 431109 + ... + 456855.

It is an arithmetic number, because the mean of its divisors is an integer number (306813168).

Almost surely, 2^11431204554 is an apocalyptic number.

11431204554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11431204554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14727032064).

11431204554 is an abundant number, since it is smaller than the sum of its proper divisors (18022859574).

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

11431204554 is a wasteful number, since it uses less digits than its factorization.

11431204554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25832 (or 25801 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 11431204554 its reverse (45540213411), we get a palindrome (56971417965).

The spelling of 11431204554 in words is "eleven billion, four hundred thirty-one million, two hundred four thousand, five hundred fifty-four".