212130430 has 16 divisors (see below), whose sum is σ = 382034880. Its totient is φ = 84807712.

The previous prime is 212130397. The next prime is 212130431. The reversal of 212130430 is 34031212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212130431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20136 + ... + 28804.

It is an arithmetic number, because the mean of its divisors is an integer number (23877180).

Almost surely, 2^212130430 is an apocalyptic number.

212130430 is a deficient number, since it is larger than the sum of its proper divisors (169904450).

212130430 is a wasteful number, since it uses less digits than its factorization.

212130430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11123.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212130430 is about 14564.6980744539. The cubic root of 212130430 is about 596.3954535873.

Adding to 212130430 its reverse (34031212), we get a palindrome (246161642).

The spelling of 212130430 in words is "two hundred twelve million, one hundred thirty thousand, four hundred thirty".