213112110101 has 16 divisors (see below), whose sum is σ = 234774901440. Its totient is φ = 191834200320.

The previous prime is 213112110067. The next prime is 213112110163. The reversal of 213112110101 is 101011211312.

It is a cyclic number.

It is not a de Polignac number, because 213112110101 - 2⁶ = 213112110037 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 (213112118101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1182491 + ... + 1350743.

It is an arithmetic number, because the mean of its divisors is an integer number (14673431340).

Almost surely, 2^213112110101 is an apocalyptic number.

It is an amenable number.

213112110101 is a deficient number, since it is larger than the sum of its proper divisors (21662791339).

213112110101 is a wasteful number, since it uses less digits than its factorization.

213112110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169396.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 213112110101 its reverse (101011211312), we get a palindrome (314123321413).

The spelling of 213112110101 in words is "two hundred thirteen billion, one hundred twelve million, one hundred ten thousand, one hundred one".