201323130331 has 4 divisors (see below), whose sum is σ = 201383033464. Its totient is φ = 201263227200.

The previous prime is 201323130329. The next prime is 201323130341. The reversal of 201323130331 is 133031323102.

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 201323130331 - 2¹ = 201323130329 is a prime.

It is a super-2 number, since 2×201323130331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201323130341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29946525 + ... + 29953246.

It is an arithmetic number, because the mean of its divisors is an integer number (50345758366).

Almost surely, 2^201323130331 is an apocalyptic number.

201323130331 is a deficient number, since it is larger than the sum of its proper divisors (59903133).

201323130331 is an equidigital number, since it uses as much as digits as its factorization.

201323130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59903132.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 201323130331 its reverse (133031323102), we get a palindrome (334354453433).

The spelling of 201323130331 in words is "two hundred one billion, three hundred twenty-three million, one hundred thirty thousand, three hundred thirty-one".