11311031121201 has 40 divisors (see below), whose sum is σ = 19321951180224. Its totient is φ = 6459628059360.

The previous prime is 11311031121163. The next prime is 11311031121209. The reversal of 11311031121201 is 10212113011311.

11311031121201 is a `hidden beast` number, since 1 + 1 + 311 + 0 + 31 + 121 + 201 = 666.

It is not a de Polignac number, because 11311031121201 - 2¹⁸ = 11311030859057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11311031121209) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4931655 + ... + 6851516.

Almost surely, 2^{11311031121201} is an apocalyptic number.

It is an amenable number.

11311031121201 is a deficient number, since it is larger than the sum of its proper divisors (8010920059023).

11311031121201 is a wasteful number, since it uses less digits than its factorization.

11311031121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11784883 (or 11784874 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 11311031121201 its reverse (10212113011311), we get a palindrome (21523144132512).

The spelling of 11311031121201 in words is "eleven trillion, three hundred eleven billion, thirty-one million, one hundred twenty-one thousand, two hundred one".