31311121002201 has 24 divisors (see below), whose sum is σ = 47236811069760. Its totient is φ = 19965680443296.

The previous prime is 31311121002101. The next prime is 31311121002209. The reversal of 31311121002201 is 10220012111313.

31311121002201 is a `hidden beast` number, since 31 + 311 + 1 + 2 + 100 + 220 + 1 = 666.

It is not a de Polignac number, because 31311121002201 - 2¹⁰ = 31311121001177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31311121002209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 796822645 + ... + 796861938.

It is an arithmetic number, because the mean of its divisors is an integer number (1968200461240).

Almost surely, 2^{31311121002201} is an apocalyptic number.

It is an amenable number.

31311121002201 is a deficient number, since it is larger than the sum of its proper divisors (15925690067559).

31311121002201 is a wasteful number, since it uses less digits than its factorization.

31311121002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593684685 (or 1593684682 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 31311121002201 its reverse (10220012111313), we get a palindrome (41531133113514).

The spelling of 31311121002201 in words is "thirty-one trillion, three hundred eleven billion, one hundred twenty-one million, two thousand, two hundred one".