11211231400242 has 8 divisors (see below), whose sum is σ = 22422462800496. Its totient is φ = 3737077133412.

The previous prime is 11211231400199. The next prime is 11211231400301. The reversal of 11211231400242 is 24200413211211.

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

11211231400242 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934269283348 + ... + 934269283359.

It is an arithmetic number, because the mean of its divisors is an integer number (2802807850062).

Almost surely, 2^{11211231400242} is an apocalyptic number.

11211231400242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11211231400242 is a wasteful number, since it uses less digits than its factorization.

11211231400242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868538566712.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 11211231400242 its reverse (24200413211211), we get a palindrome (35411644611453).

The spelling of 11211231400242 in words is "eleven trillion, two hundred eleven billion, two hundred thirty-one million, four hundred thousand, two hundred forty-two".