201223310331 has 16 divisors (see below), whose sum is σ = 277584053760. Its totient is φ = 129506875680.

The previous prime is 201223310329. The next prime is 201223310333. The reversal of 201223310331 is 133013322102.

It is an interprime number because it is at equal distance from previous prime (201223310329) and next prime (201223310333).

It is not a de Polignac number, because 201223310331 - 2¹ = 201223310329 is a prime.

It is a super-2 number, since 2×201223310331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201223310298 and 201223310307.

It is not an unprimeable number, because it can be changed into a prime (201223310333) 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 15 ways as a sum of consecutive naturals, for example, 576846 + ... + 857436.

It is an arithmetic number, because the mean of its divisors is an integer number (17349003360).

Almost surely, 2^201223310331 is an apocalyptic number.

201223310331 is a deficient number, since it is larger than the sum of its proper divisors (76360743429).

201223310331 is a wasteful number, since it uses less digits than its factorization.

201223310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288866.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 201223310331 its reverse (133013322102), we get a palindrome (334236632433).

The spelling of 201223310331 in words is "two hundred one billion, two hundred twenty-three million, three hundred ten thousand, three hundred thirty-one".