11211423506 has 8 divisors (see below), whose sum is σ = 16857272880. Its totient is φ = 5592332548.

The previous prime is 11211423479. The next prime is 11211423511. The reversal of 11211423506 is 60532411211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6688556 + ... + 6690231.

It is an arithmetic number, because the mean of its divisors is an integer number (2107159110).

Almost surely, 2^11211423506 is an apocalyptic number.

11211423506 is a deficient number, since it is larger than the sum of its proper divisors (5645849374).

11211423506 is a wasteful number, since it uses less digits than its factorization.

11211423506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13379208.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 11211423506 its reverse (60532411211), we get a palindrome (71743834717).

The spelling of 11211423506 in words is "eleven billion, two hundred eleven million, four hundred twenty-three thousand, five hundred six".