11421423045450 has 192 divisors, whose sum is σ = 34344886608000. Its totient is φ = 2767910745600.

The previous prime is 11421423045443. The next prime is 11421423045451. The reversal of 11421423045450 is 5454032412411.

11421423045450 is a `hidden beast` number, since 1 + 1 + 42 + 1 + 42 + 30 + 4 + 545 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (11421423045451) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45151524 + ... + 45403776.

It is an arithmetic number, because the mean of its divisors is an integer number (178879617750).

Almost surely, 2^{11421423045450} is an apocalyptic number.

11421423045450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11421423045450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17172443304000).

11421423045450 is an abundant number, since it is smaller than the sum of its proper divisors (22923463562550).

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

11421423045450 is a wasteful number, since it uses less digits than its factorization.

11421423045450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255334 (or 255323 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 11421423045450 its reverse (5454032412411), we get a palindrome (16875455457861).

The spelling of 11421423045450 in words is "eleven trillion, four hundred twenty-one billion, four hundred twenty-three million, forty-five thousand, four hundred fifty".