201031312000 has 128 divisors (see below), whose sum is σ = 505839297600. Its totient is φ = 79443174400.

The previous prime is 201031311991. The next prime is 201031312037. The reversal of 201031312000 is 213130102.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 1252311 + ... + 1403689.

Almost surely, 2^201031312000 is an apocalyptic number.

201031312000 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 201031312000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252919648800).

201031312000 is an abundant number, since it is smaller than the sum of its proper divisors (304807985600).

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

201031312000 is an equidigital number, since it uses as much as digits as its factorization.

201031312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151491 (or 151469 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 201031312000 its reverse (213130102), we get a palindrome (201244442102).

The spelling of 201031312000 in words is "two hundred one billion, thirty-one million, three hundred twelve thousand".