201230311222320 has 80 divisors (see below), whose sum is σ = 627641044449792. Its totient is φ = 53332205172480.

The previous prime is 201230311222313. The next prime is 201230311222321. The reversal of 201230311222320 is 23222113032102.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (201230311222321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2571922936 + ... + 2572001175.

Almost surely, 2^{201230311222320} is an apocalyptic number.

201230311222320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201230311222320 is an abundant number, since it is smaller than the sum of its proper divisors (426410733227472).

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

201230311222320 is a wasteful number, since it uses less digits than its factorization.

201230311222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143924290 (or 5143924284 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 201230311222320 its reverse (23222113032102), we get a palindrome (224452424254422).

The spelling of 201230311222320 in words is "two hundred one trillion, two hundred thirty billion, three hundred eleven million, two hundred twenty-two thousand, three hundred twenty".