201231002 has 32 divisors (see below), whose sum is σ = 361670400.
Its totient is φ = 82101888.
The previous prime is 201231001. The next prime is 201231007. The reversal of 201231002 is 200132102.
Adding to 201231002 its reverse (200132102), we get a palindrome (401363104).
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (201231001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72374 + ... + 75102.
It is an arithmetic number, because the mean of its divisors is an integer number (11302200).
Almost surely, 2201231002 is an apocalyptic number.
201231002 is a deficient number, since it is larger than the sum of its proper divisors (160439398).
201231002 is a wasteful number, since it uses less digits than its factorization.
201231002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2990.
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 201231002 is about 14185.5913517907.
The cubic root of 201231002 is about 586.0009182776.
Note that the first 3 decimals are identical.
The spelling of 201231002 in words is "two hundred one million, two hundred thirty-one thousand, two".