11442450421 has 8 divisors (see below), whose sum is σ = 11487338784. Its totient is φ = 11397594000.

The previous prime is 11442450407. The next prime is 11442450433. The reversal of 11442450421 is 12405424411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11442450421 - 2¹¹ = 11442448373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11442450421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442450401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913815 + ... + 926251.

It is an arithmetic number, because the mean of its divisors is an integer number (1435917348).

Almost surely, 2^11442450421 is an apocalyptic number.

It is an amenable number.

11442450421 is a deficient number, since it is larger than the sum of its proper divisors (44888363).

11442450421 is a wasteful number, since it uses less digits than its factorization.

11442450421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15971.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 11442450421 its reverse (12405424411), we get a palindrome (23847874832).

The spelling of 11442450421 in words is "eleven billion, four hundred forty-two million, four hundred fifty thousand, four hundred twenty-one".