302312223211213 has 4 divisors (see below), whose sum is σ = 302312264221980. Its totient is φ = 302312182200448.

The previous prime is 302312223211189. The next prime is 302312223211223. The reversal of 302312223211213 is 312112322213203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121999911257449 + 180312311953764 = 11045357^2 + 13428042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302312223211213 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 (302312223211223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6052420 + ... + 25323037.

It is an arithmetic number, because the mean of its divisors is an integer number (75578066055495).

Almost surely, 2^{302312223211213} is an apocalyptic number.

It is an amenable number.

302312223211213 is a deficient number, since it is larger than the sum of its proper divisors (41010767).

302312223211213 is an equidigital number, since it uses as much as digits as its factorization.

302312223211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41010766.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 302312223211213 its reverse (312112322213203), we get a palindrome (614424545424416).

The spelling of 302312223211213 in words is "three hundred two trillion, three hundred twelve billion, two hundred twenty-three million, two hundred eleven thousand, two hundred thirteen".