11321434145442 has 16 divisors (see below), whose sum is σ = 22642905411360. Its totient is φ = 3773805195072.

The previous prime is 11321434145431. The next prime is 11321434145447. The reversal of 11321434145442 is 24454143412311.

It is a super-2 number, since 2×11321434145442² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11321434145442.

It is not an unprimeable number, because it can be changed into a prime (11321434145447) 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, 3886138 + ... + 6143690.

It is an arithmetic number, because the mean of its divisors is an integer number (1415181588210).

Almost surely, 2^{11321434145442} is an apocalyptic number.

11321434145442 is an abundant number, since it is smaller than the sum of its proper divisors (11321471265918).

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

11321434145442 is a wasteful number, since it uses less digits than its factorization.

11321434145442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093377.

The product of its digits is 184320, while the sum is 39.

Adding to 11321434145442 its reverse (24454143412311), we get a palindrome (35775577557753).

The spelling of 11321434145442 in words is "eleven trillion, three hundred twenty-one billion, four hundred thirty-four million, one hundred forty-five thousand, four hundred forty-two".