213121213301 has 8 divisors (see below), whose sum is σ = 215086502400. Its totient is φ = 211156107120.

The previous prime is 213121213271. The next prime is 213121213309. The reversal of 213121213301 is 103312121312.

It is a happy number.

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 213121213301 - 2¹⁰ = 213121212277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213121213309) 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, 3702620 + ... + 3759738.

It is an arithmetic number, because the mean of its divisors is an integer number (26885812800).

Almost surely, 2^213121213301 is an apocalyptic number.

It is an amenable number.

213121213301 is a deficient number, since it is larger than the sum of its proper divisors (1965289099).

213121213301 is a wasteful number, since it uses less digits than its factorization.

213121213301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91459.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213121213301 its reverse (103312121312), we get a palindrome (316433334613).

The spelling of 213121213301 in words is "two hundred thirteen billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred one".