201230021311 has 8 divisors (see below), whose sum is σ = 220673000448. Its totient is φ = 181978599000.

The previous prime is 201230021297. The next prime is 201230021327. The reversal of 201230021311 is 113120032102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201230021311 - 2⁷ = 201230021183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201230021381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47887005 + ... + 47891206.

It is an arithmetic number, because the mean of its divisors is an integer number (27584125056).

Almost surely, 2^201230021311 is an apocalyptic number.

201230021311 is a deficient number, since it is larger than the sum of its proper divisors (19442979137).

201230021311 is a wasteful number, since it uses less digits than its factorization.

201230021311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95778413.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 201230021311 its reverse (113120032102), we get a palindrome (314350053413).

The spelling of 201230021311 in words is "two hundred one billion, two hundred thirty million, twenty-one thousand, three hundred eleven".