303213100213 has 4 divisors (see below), whose sum is σ = 303307006540. Its totient is φ = 303119193888.

The previous prime is 303213100193. The next prime is 303213100241. The reversal of 303213100213 is 312001312303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312001312303 = 11083 ⋅28151341.

It can be written as a sum of positive squares in 2 ways, for example, as 153708691249 + 149504408964 = 392057^2 + 386658^2 .

It is a cyclic number.

It is not a de Polignac number, because 303213100213 - 2⁵ = 303213100181 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 (303213100283) 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, 46948320 + ... + 46954777.

It is an arithmetic number, because the mean of its divisors is an integer number (75826751635).

Almost surely, 2^303213100213 is an apocalyptic number.

It is an amenable number.

303213100213 is a deficient number, since it is larger than the sum of its proper divisors (93906327).

303213100213 is an equidigital number, since it uses as much as digits as its factorization.

303213100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93906326.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 303213100213 its reverse (312001312303), we get a palindrome (615214412516).

The spelling of 303213100213 in words is "three hundred three billion, two hundred thirteen million, one hundred thousand, two hundred thirteen".