201312021121 has 8 divisors (see below), whose sum is σ = 201937622400. Its totient is φ = 200686780800.

The previous prime is 201312021101. The next prime is 201312021227. The reversal of 201312021121 is 121120213102.

201312021121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201312021121 - 2⁷ = 201312020993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201312021095 and 201312021104.

It is not an unprimeable number, because it can be changed into a prime (201312021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049196 + ... + 1226146.

It is an arithmetic number, because the mean of its divisors is an integer number (25242202800).

Almost surely, 2^201312021121 is an apocalyptic number.

It is an amenable number.

201312021121 is a deficient number, since it is larger than the sum of its proper divisors (625601279).

201312021121 is a wasteful number, since it uses less digits than its factorization.

201312021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180479.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 201312021121 its reverse (121120213102), we get a palindrome (322432234223).

The spelling of 201312021121 in words is "two hundred one billion, three hundred twelve million, twenty-one thousand, one hundred twenty-one".