201211002130331 has 4 divisors (see below), whose sum is σ = 202222112694000. Its totient is φ = 200199891566664.

The previous prime is 201211002130297. The next prime is 201211002130337. The reversal of 201211002130331 is 133031200112102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201211002130331 - 2⁶ = 201211002130267 is a prime.

It is a super-2 number, since 2×201211002130331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201211002130337) 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, 505555281536 + ... + 505555281933.

It is an arithmetic number, because the mean of its divisors is an integer number (50555528173500).

Almost surely, 2^{201211002130331} is an apocalyptic number.

201211002130331 is a deficient number, since it is larger than the sum of its proper divisors (1011110563669).

201211002130331 is a wasteful number, since it uses less digits than its factorization.

201211002130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011110563668.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 201211002130331 its reverse (133031200112102), we get a palindrome (334242202242433).

The spelling of 201211002130331 in words is "two hundred one trillion, two hundred eleven billion, two million, one hundred thirty thousand, three hundred thirty-one".