11442342009 has 16 divisors (see below), whose sum is σ = 17469304832. Its totient is φ = 6525973008.

The previous prime is 11442342007. The next prime is 11442342053. The reversal of 11442342009 is 90024324411.

It is not a de Polignac number, because 11442342009 - 2¹ = 11442342007 is a prime.

It is a super-3 number, since 3×11442342009³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11442342007) 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 15 ways as a sum of consecutive naturals, for example, 509929 + ... + 531894.

It is an arithmetic number, because the mean of its divisors is an integer number (1091831552).

Almost surely, 2^11442342009 is an apocalyptic number.

It is an amenable number.

11442342009 is a deficient number, since it is larger than the sum of its proper divisors (6026962823).

11442342009 is a wasteful number, since it uses less digits than its factorization.

11442342009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042356.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 11442342009 in words is "eleven billion, four hundred forty-two million, three hundred forty-two thousand, nine".