213203310121 has 8 divisors (see below), whose sum is σ = 214718170464. Its totient is φ = 211693812960.

The previous prime is 213203310041. The next prime is 213203310137. The reversal of 213203310121 is 121013302312.

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 213203310121 - 2¹⁹ = 213202785833 is a prime.

It is a super-3 number, since 3×213203310121³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213203310181) 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, 1260991 + ... + 1420036.

It is an arithmetic number, because the mean of its divisors is an integer number (26839771308).

Almost surely, 2^213203310121 is an apocalyptic number.

It is an amenable number.

213203310121 is a deficient number, since it is larger than the sum of its proper divisors (1514860343).

213203310121 is a wasteful number, since it uses less digits than its factorization.

213203310121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681591.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 213203310121 its reverse (121013302312), we get a palindrome (334216612433).

The spelling of 213203310121 in words is "two hundred thirteen billion, two hundred three million, three hundred ten thousand, one hundred twenty-one".