201321130121 has 8 divisors (see below), whose sum is σ = 206321442624. Its totient is φ = 196335291600.

The previous prime is 201321130103. The next prime is 201321130177. The reversal of 201321130121 is 121031123102.

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

It is a cyclic number.

It is not a de Polignac number, because 201321130121 - 2¹⁸ = 201320867977 is a prime.

It is a super-2 number, since 2×201321130121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 201321130121.

It is not an unprimeable number, because it can be changed into a prime (201321130181) 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, 3590330 + ... + 3645971.

It is an arithmetic number, because the mean of its divisors is an integer number (25790180328).

Almost surely, 2^201321130121 is an apocalyptic number.

It is an amenable number.

201321130121 is a deficient number, since it is larger than the sum of its proper divisors (5000312503).

201321130121 is an equidigital number, since it uses as much as digits as its factorization.

201321130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236991.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201321130121 its reverse (121031123102), we get a palindrome (322352253223).

The spelling of 201321130121 in words is "two hundred one billion, three hundred twenty-one million, one hundred thirty thousand, one hundred twenty-one".