11311123120201 has 4 divisors (see below), whose sum is σ = 11311145960400. Its totient is φ = 11311100280004.

The previous prime is 11311123120153. The next prime is 11311123120229. The reversal of 11311123120201 is 10202132111311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11311123120201 - 2²¹ = 11311121023049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311123120001) by changing a digit.

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, 10660411 + ... + 11673328.

It is an arithmetic number, because the mean of its divisors is an integer number (2827786490100).

Almost surely, 2^{11311123120201} is an apocalyptic number.

It is an amenable number.

11311123120201 is a deficient number, since it is larger than the sum of its proper divisors (22840199).

11311123120201 is an equidigital number, since it uses as much as digits as its factorization.

11311123120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22840198.

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

Adding to 11311123120201 its reverse (10202132111311), we get a palindrome (21513255231512).

The spelling of 11311123120201 in words is "eleven trillion, three hundred eleven billion, one hundred twenty-three million, one hundred twenty thousand, two hundred one".