201231223002 has 12 divisors (see below), whose sum is σ = 436000983210. Its totient is φ = 67077074328.

The previous prime is 201231222989. The next prime is 201231223021. The reversal of 201231223002 is 200322132102.

201231223002 is a `hidden beast` number, since 201 + 231 + 2 + 230 + 0 + 2 = 666.

201231223002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 153594231921 + 47636991081 = 391911^2 + 218259^2 .

It is a super-2 number, since 2×201231223002² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11179512389 = 201231223002 / (2 + 0 + 1 + 2 + 3 + 1 + 2 + 2 + 3 + 0 + 0 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5589756177 + ... + 5589756212.

Almost surely, 2^201231223002 is an apocalyptic number.

201231223002 is an abundant number, since it is smaller than the sum of its proper divisors (234769760208).

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

201231223002 is a wasteful number, since it uses less digits than its factorization.

201231223002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11179512397 (or 11179512394 counting only the distinct ones).

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

Adding to 201231223002 its reverse (200322132102), we get a palindrome (401553355104).

The spelling of 201231223002 in words is "two hundred one billion, two hundred thirty-one million, two hundred twenty-three thousand, two".