213120202313 has 8 divisors (see below), whose sum is σ = 227890911240. Its totient is φ = 198597740800.

The previous prime is 213120202303. The next prime is 213120202343. The reversal of 213120202313 is 313202021312.

It can be written as a sum of positive squares in 4 ways, for example, as 102545331529 + 110574870784 = 320227^2 + 332528^2 .

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 213120202313 - 2⁶ = 213120202249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213120202303) 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, 62060078 + ... + 62063511.

It is an arithmetic number, because the mean of its divisors is an integer number (28486363905).

Almost surely, 2^213120202313 is an apocalyptic number.

It is an amenable number.

213120202313 is a deficient number, since it is larger than the sum of its proper divisors (14770708927).

213120202313 is a wasteful number, since it uses less digits than its factorization.

213120202313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124123707.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213120202313 its reverse (313202021312), we get a palindrome (526322223625).

The spelling of 213120202313 in words is "two hundred thirteen billion, one hundred twenty million, two hundred two thousand, three hundred thirteen".