201323001022 has 32 divisors (see below), whose sum is σ = 359269908480. Its totient is φ = 83401924320.

The previous prime is 201323000969. The next prime is 201323001071. The reversal of 201323001022 is 220100323102.

It is a junction number, because it is equal to n+sod(n) for n = 201323000987 and 201323001005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4432638 + ... + 4477825.

It is an arithmetic number, because the mean of its divisors is an integer number (11227184640).

Almost surely, 2^201323001022 is an apocalyptic number.

201323001022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201323001022 is a deficient number, since it is larger than the sum of its proper divisors (157946907458).

201323001022 is a wasteful number, since it uses less digits than its factorization.

201323001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910568.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201323001022 its reverse (220100323102), we get a palindrome (421423324124).

The spelling of 201323001022 in words is "two hundred one billion, three hundred twenty-three million, one thousand, twenty-two".