212120132113 has 16 divisors (see below), whose sum is σ = 214430198400. Its totient is φ = 209826247680.

The previous prime is 212120132023. The next prime is 212120132131. The reversal of 212120132113 is 311231021212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212120132113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212120132173) 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, 24912945 + ... + 24921457.

It is an arithmetic number, because the mean of its divisors is an integer number (13401887400).

Almost surely, 2^212120132113 is an apocalyptic number.

It is an amenable number.

212120132113 is a deficient number, since it is larger than the sum of its proper divisors (2310066287).

212120132113 is a wasteful number, since it uses less digits than its factorization.

212120132113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9432.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212120132113 its reverse (311231021212), we get a palindrome (523351153325).

The spelling of 212120132113 in words is "two hundred twelve billion, one hundred twenty million, one hundred thirty-two thousand, one hundred thirteen".