213042310 has 32 divisors (see below), whose sum is σ = 414025920. Its totient is φ = 78461568.

The previous prime is 213042299. The next prime is 213042311. The reversal of 213042310 is 13240312.

It is a happy number.

It is a super-2 number, since 2×213042310² = 90774051700272200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213042311) 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, 55204 + ... + 58936.

It is an arithmetic number, because the mean of its divisors is an integer number (12938310).

Almost surely, 2^213042310 is an apocalyptic number.

213042310 is a deficient number, since it is larger than the sum of its proper divisors (200983610).

213042310 is a wasteful number, since it uses less digits than its factorization.

213042310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192.

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

The square root of 213042310 is about 14595.9689640668. The cubic root of 213042310 is about 597.2488022815.

Adding to 213042310 its reverse (13240312), we get a palindrome (226282622).

The spelling of 213042310 in words is "two hundred thirteen million, forty-two thousand, three hundred ten".