201131212333 has 2 divisors, whose sum is σ = 201131212334. Its totient is φ = 201131212332.

The previous prime is 201131212283. The next prime is 201131212369. The reversal of 201131212333 is 333212131102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195918661129 + 5212551204 = 442627^2 + 72198^2 .

It is a cyclic number.

It is not a de Polignac number, because 201131212333 - 2⁹ = 201131211821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201131212033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100565606166 + 100565606167.

It is an arithmetic number, because the mean of its divisors is an integer number (100565606167).

Almost surely, 2^201131212333 is an apocalyptic number.

It is an amenable number.

201131212333 is a deficient number, since it is larger than the sum of its proper divisors (1).

201131212333 is an equidigital number, since it uses as much as digits as its factorization.

201131212333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 201131212333 its reverse (333212131102), we get a palindrome (534343343435).

The spelling of 201131212333 in words is "two hundred one billion, one hundred thirty-one million, two hundred twelve thousand, three hundred thirty-three".