201320121 has 8 divisors (see below), whose sum is σ = 268493824. Its totient is φ = 134179920.

The previous prime is 201320111. The next prime is 201320123. The reversal of 201320121 is 121023102.

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

It is not a de Polignac number, because 201320121 - 2⁵ = 201320089 is a prime.

It is a super-2 number, since 2×201320121² = 81059582238909282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201320097 and 201320106.

It is not an unprimeable number, because it can be changed into a prime (201320123) 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, 14856 + ... + 24966.

It is an arithmetic number, because the mean of its divisors is an integer number (33561728).

Almost surely, 2^201320121 is an apocalyptic number.

It is an amenable number.

201320121 is a deficient number, since it is larger than the sum of its proper divisors (67173703).

201320121 is a wasteful number, since it uses less digits than its factorization.

201320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16751.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201320121 is about 14188.7321843779. The cubic root of 201320121 is about 586.0874127504.

Adding to 201320121 its reverse (121023102), we get a palindrome (322343223).

The spelling of 201320121 in words is "two hundred one million, three hundred twenty thousand, one hundred twenty-one".