213112111304 has 64 divisors (see below), whose sum is σ = 414772853040. Its totient is φ = 102569241600.

The previous prime is 213112111291. The next prime is 213112111307. The reversal of 213112111304 is 403111211312.

It can be written as a sum of positive squares in 8 ways, for example, as 104012700100 + 109099411204 = 322510^2 + 330302^2 .

It is not an unprimeable number, because it can be changed into a prime (213112111307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58983002 + ... + 58986614.

Almost surely, 2^213112111304 is an apocalyptic number.

It is an amenable number.

213112111304 is a deficient number, since it is larger than the sum of its proper divisors (201660741736).

213112111304 is a wasteful number, since it uses less digits than its factorization.

213112111304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730 (or 5726 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 213112111304 its reverse (403111211312), we get a palindrome (616223322616).

The spelling of 213112111304 in words is "two hundred thirteen billion, one hundred twelve million, one hundred eleven thousand, three hundred four".