201322123002 has 256 divisors, whose sum is σ = 609657753600. Its totient is φ = 47547751680.

The previous prime is 201322122997. The next prime is 201322123031. The reversal of 201322123002 is 200321223102.

201322123002 is a `hidden beast` number, since 20 + 132 + 212 + 300 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3593824 + ... + 3649412.

It is an arithmetic number, because the mean of its divisors is an integer number (2381475600).

Almost surely, 2^201322123002 is an apocalyptic number.

201322123002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 201322123002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304828876800).

201322123002 is an abundant number, since it is smaller than the sum of its proper divisors (408335630598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201322123002 is a wasteful number, since it uses less digits than its factorization.

201322123002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55698 (or 55692 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 201322123002 its reverse (200321223102), we get a palindrome (401643346104).

The spelling of 201322123002 in words is "two hundred one billion, three hundred twenty-two million, one hundred twenty-three thousand, two".