11243214442 has 4 divisors (see below), whose sum is σ = 16864821666. Its totient is φ = 5621607220.

The previous prime is 11243214439. The next prime is 11243214461. The reversal of 11243214442 is 24441234211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7791769441 + 3451445001 = 88271^2 + 58749^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11243214442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2810803609 + ... + 2810803612.

Almost surely, 2^11243214442 is an apocalyptic number.

11243214442 is a deficient number, since it is larger than the sum of its proper divisors (5621607224).

11243214442 is an equidigital number, since it uses as much as digits as its factorization.

11243214442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621607223.

The product of its digits is 6144, while the sum is 28.

Adding to 11243214442 its reverse (24441234211), we get a palindrome (35684448653).

The spelling of 11243214442 in words is "eleven billion, two hundred forty-three million, two hundred fourteen thousand, four hundred forty-two".