201231302000 has 80 divisors (see below), whose sum is σ = 486711482400. Its totient is φ = 80470323200.

The previous prime is 201231301993. The next prime is 201231302011. The reversal of 201231302000 is 203132102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8566271 + ... + 8589729.

It is an arithmetic number, because the mean of its divisors is an integer number (6083893530).

Almost surely, 2^201231302000 is an apocalyptic number.

201231302000 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 201231302000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243355741200).

201231302000 is an abundant number, since it is smaller than the sum of its proper divisors (285480180400).

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

201231302000 is a wasteful number, since it uses less digits than its factorization.

201231302000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27771 (or 27755 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 201231302000 its reverse (203132102), we get a palindrome (201434434102).

The spelling of 201231302000 in words is "two hundred one billion, two hundred thirty-one million, three hundred two thousand".