11223443452540 has 48 divisors (see below), whose sum is σ = 25714675665504. Its totient is φ = 4080809779200.

The previous prime is 11223443452517. The next prime is 11223443452549. The reversal of 11223443452540 is 4525434432211.

It is a junction number, because it is equal to n+sod(n) for n = 11223443452493 and 11223443452502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223443452549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727269 + ... + 4793308.

It is an arithmetic number, because the mean of its divisors is an integer number (535722409698).

Almost surely, 2^{11223443452540} is an apocalyptic number.

11223443452540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11223443452540 is an abundant number, since it is smaller than the sum of its proper divisors (14491232212964).

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

11223443452540 is a wasteful number, since it uses less digits than its factorization.

11223443452540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529838 (or 5529836 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 11223443452540 its reverse (4525434432211), we get a palindrome (15748877884751).

The spelling of 11223443452540 in words is "eleven trillion, two hundred twenty-three billion, four hundred forty-three million, four hundred fifty-two thousand, five hundred forty".