201201011000 has 64 divisors (see below), whose sum is σ = 513611336160. Its totient is φ = 73164000000.

The previous prime is 201201010987. The next prime is 201201011003. The reversal of 201201011000 is 110102102.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201011003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9134501 + ... + 9156500.

Almost surely, 2^201201011000 is an apocalyptic number.

201201011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201201011000 is an abundant number, since it is smaller than the sum of its proper divisors (312410325160).

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

201201011000 is a wasteful number, since it uses less digits than its factorization.

201201011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18291033 (or 18291019 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 201201011000 its reverse (110102102), we get a palindrome (201311113102).

The spelling of 201201011000 in words is "two hundred one billion, two hundred one million, eleven thousand".