201323220131 has 8 divisors (see below), whose sum is σ = 219628670400. Its totient is φ = 183018326440.

The previous prime is 201323220067. The next prime is 201323220157. The reversal of 201323220131 is 131022323102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201323220131 - 2⁶ = 201323220067 is a prime.

It is a super-2 number, since 2×201323220131² (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 (201323220191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086980 + ... + 1258638.

It is an arithmetic number, because the mean of its divisors is an integer number (27453583800).

Almost surely, 2^201323220131 is an apocalyptic number.

201323220131 is a deficient number, since it is larger than the sum of its proper divisors (18305450269).

201323220131 is a wasteful number, since it uses less digits than its factorization.

201323220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278289.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 201323220131 its reverse (131022323102), we get a palindrome (332345543233).

The spelling of 201323220131 in words is "two hundred one billion, three hundred twenty-three million, two hundred twenty thousand, one hundred thirty-one".