212351113 has 8 divisors (see below), whose sum is σ = 228926600. Its totient is φ = 195810048.

The previous prime is 212351093. The next prime is 212351119. The reversal of 212351113 is 311153212.

It can be written as a sum of positive squares in 4 ways, for example, as 1607824 + 210743289 = 1268^2 + 14517^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212351113 - 2⁹ = 212350601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212351119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5023 + ... + 21211.

It is an arithmetic number, because the mean of its divisors is an integer number (28615825).

Almost surely, 2^212351113 is an apocalyptic number.

It is an amenable number.

212351113 is a deficient number, since it is larger than the sum of its proper divisors (16575487).

212351113 is a wasteful number, since it uses less digits than its factorization.

212351113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17211.

The product of its digits is 180, while the sum is 19.

The square root of 212351113 is about 14572.2720603206. The cubic root of 212351113 is about 596.6021954552.

The spelling of 212351113 in words is "two hundred twelve million, three hundred fifty-one thousand, one hundred thirteen".