11121311322001 has 4 divisors (see below), whose sum is σ = 11122491812404. Its totient is φ = 11120130831600.

The previous prime is 11121311321983. The next prime is 11121311322007. The reversal of 11121311322001 is 10022311312111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2891292144400 + 8230019177601 = 1700380^2 + 2868801^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121311322001 - 2⁷ = 11121311321873 is a prime.

It is a super-3 number, since 3×11121311322001³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121311322001.

It is not an unprimeable number, because it can be changed into a prime (11121311322007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590231070 + ... + 590249911.

It is an arithmetic number, because the mean of its divisors is an integer number (2780622953101).

Almost surely, 2^{11121311322001} is an apocalyptic number.

It is an amenable number.

11121311322001 is a deficient number, since it is larger than the sum of its proper divisors (1180490403).

11121311322001 is an equidigital number, since it uses as much as digits as its factorization.

11121311322001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180490402.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11121311322001 its reverse (10022311312111), we get a palindrome (21143622634112).

The spelling of 11121311322001 in words is "eleven trillion, one hundred twenty-one billion, three hundred eleven million, three hundred twenty-two thousand, one".