201201231000 has 256 divisors, whose sum is σ = 782647557120. Its totient is φ = 41808000000.

The previous prime is 201201230999. The next prime is 201201231013. The reversal of 201201231000 is 132102102.

It is a super-2 number, since 2×201201231000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 204501 + ... + 666500.

It is an arithmetic number, because the mean of its divisors is an integer number (3057217020).

Almost surely, 2^201201231000 is an apocalyptic number.

201201231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201201231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391323778560).

201201231000 is an abundant number, since it is smaller than the sum of its proper divisors (581446326120).

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

201201231000 is a wasteful number, since it uses less digits than its factorization.

201201231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871043 (or 871029 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 201201231000 its reverse (132102102), we get a palindrome (201333333102).

The spelling of 201201231000 in words is "two hundred one billion, two hundred one million, two hundred thirty-one thousand".