213203020113 has 12 divisors (see below), whose sum is σ = 307990334340. Its totient is φ = 142121308416.

The previous prime is 213203020081. The next prime is 213203020117. The reversal of 213203020113 is 311020302312.

It can be written as a sum of positive squares in 2 ways, for example, as 102894675984 + 110308344129 = 320772^2 + 332127^2 .

It is not a de Polignac number, because 213203020113 - 2⁵ = 213203020081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213203020117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073256 + ... + 1256297.

It is an arithmetic number, because the mean of its divisors is an integer number (25665861195).

Almost surely, 2^213203020113 is an apocalyptic number.

It is an amenable number.

213203020113 is a deficient number, since it is larger than the sum of its proper divisors (94787314227).

213203020113 is a wasteful number, since it uses less digits than its factorization.

213203020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339728 (or 2339725 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213203020113 its reverse (311020302312), we get a palindrome (524223322425).

The spelling of 213203020113 in words is "two hundred thirteen billion, two hundred three million, twenty thousand, one hundred thirteen".