213121302207 has 8 divisors (see below), whose sum is σ = 309994621440. Its totient is φ = 129164425560.

The previous prime is 213121302187. The next prime is 213121302221. The reversal of 213121302207 is 702203121312.

It is a happy number.

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

It is not a de Polignac number, because 213121302207 - 2⁶ = 213121302143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213121302257) 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, 3229110607 + ... + 3229110672.

It is an arithmetic number, because the mean of its divisors is an integer number (38749327680).

Almost surely, 2^213121302207 is an apocalyptic number.

213121302207 is a deficient number, since it is larger than the sum of its proper divisors (96873319233).

213121302207 is a wasteful number, since it uses less digits than its factorization.

213121302207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6458221293.

The product of its (nonzero) digits is 1008, while the sum is 24.

Adding to 213121302207 its reverse (702203121312), we get a palindrome (915324423519).

The spelling of 213121302207 in words is "two hundred thirteen billion, one hundred twenty-one million, three hundred two thousand, two hundred seven".