11442410021 has 4 divisors (see below), whose sum is σ = 13077040032. Its totient is φ = 9807780012.

The previous prime is 11442409991. The next prime is 11442410029. The reversal of 11442410021 is 12001424411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11442410021 - 2¹⁸ = 11442147877 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11442409975 and 11442410002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442410029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817314995 + ... + 817315008.

It is an arithmetic number, because the mean of its divisors is an integer number (3269260008).

Almost surely, 2^11442410021 is an apocalyptic number.

It is an amenable number.

11442410021 is a deficient number, since it is larger than the sum of its proper divisors (1634630011).

11442410021 is an equidigital number, since it uses as much as digits as its factorization.

11442410021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634630010.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11442410021 its reverse (12001424411), we get a palindrome (23443834432).

The spelling of 11442410021 in words is "eleven billion, four hundred forty-two million, four hundred ten thousand, twenty-one".