213001230121 has 8 divisors (see below), whose sum is σ = 224220178080. Its totient is φ = 201783117888.

The previous prime is 213001230067. The next prime is 213001230131. The reversal of 213001230121 is 121032100312.

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 213001230121 - 2²⁵ = 212967675689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213001230095 and 213001230104.

It is not an unprimeable number, because it can be changed into a prime (213001230131) 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, 353010 + ... + 742036.

It is an arithmetic number, because the mean of its divisors is an integer number (28027522260).

Almost surely, 2^213001230121 is an apocalyptic number.

It is an amenable number.

213001230121 is a deficient number, since it is larger than the sum of its proper divisors (11218947959).

213001230121 is a wasteful number, since it uses less digits than its factorization.

213001230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417863.

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

Adding to 213001230121 its reverse (121032100312), we get a palindrome (334033330433).

The spelling of 213001230121 in words is "two hundred thirteen billion, one million, two hundred thirty thousand, one hundred twenty-one".