201323001322 has 16 divisors (see below), whose sum is σ = 319009680000. Its totient is φ = 95024149920.

The previous prime is 201323001247. The next prime is 201323001349. The reversal of 201323001322 is 223100323102.

It is a super-2 number, since 2×201323001322² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 201323001322.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9416322 + ... + 9437677.

It is an arithmetic number, because the mean of its divisors is an integer number (19938105000).

Almost surely, 2^201323001322 is an apocalyptic number.

201323001322 is a deficient number, since it is larger than the sum of its proper divisors (117686678678).

201323001322 is a wasteful number, since it uses less digits than its factorization.

201323001322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18854301.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 201323001322 its reverse (223100323102), we get a palindrome (424423324424).

The spelling of 201323001322 in words is "two hundred one billion, three hundred twenty-three million, one thousand, three hundred twenty-two".