213112032113 has 4 divisors (see below), whose sum is σ = 225648034020. Its totient is φ = 200576030208.

The previous prime is 213112032101. The next prime is 213112032137. The reversal of 213112032113 is 311230211312.

It is a happy number.

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 187598998129 + 25513033984 = 433127^2 + 159728^2 .

It is a cyclic number.

It is not a de Polignac number, because 213112032113 - 2⁴ = 213112032097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213112032143) 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, 6268000928 + ... + 6268000961.

It is an arithmetic number, because the mean of its divisors is an integer number (56412008505).

Almost surely, 2^213112032113 is an apocalyptic number.

It is an amenable number.

213112032113 is a deficient number, since it is larger than the sum of its proper divisors (12536001907).

213112032113 is a wasteful number, since it uses less digits than its factorization.

213112032113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536001906.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213112032113 its reverse (311230211312), we get a palindrome (524342243425).

The spelling of 213112032113 in words is "two hundred thirteen billion, one hundred twelve million, thirty-two thousand, one hundred thirteen".