212133103 has 12 divisors (see below), whose sum is σ = 265749960. Its totient is φ = 167841072.

The previous prime is 212133101. The next prime is 212133107. The reversal of 212133103 is 301331212.

It is not a de Polignac number, because 212133103 - 2¹ = 212133101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212133101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165873 + ... + 167146.

It is an arithmetic number, because the mean of its divisors is an integer number (22145830).

Almost surely, 2^212133103 is an apocalyptic number.

212133103 is a deficient number, since it is larger than the sum of its proper divisors (53616857).

212133103 is a wasteful number, since it uses less digits than its factorization.

212133103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333046 (or 333039 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 212133103 is about 14564.7898371381. The cubic root of 212133103 is about 596.3979585844.

Adding to 212133103 its reverse (301331212), we get a palindrome (513464315).

The spelling of 212133103 in words is "two hundred twelve million, one hundred thirty-three thousand, one hundred three".