213431030 has 16 divisors (see below), whose sum is σ = 400879584. Its totient is φ = 81660480.

The previous prime is 213431017. The next prime is 213431051. The reversal of 213431030 is 30134312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463751 + ... + 464210.

It is an arithmetic number, because the mean of its divisors is an integer number (25054974).

Almost surely, 2^213431030 is an apocalyptic number.

213431030 is a deficient number, since it is larger than the sum of its proper divisors (187448554).

213431030 is a wasteful number, since it uses less digits than its factorization.

213431030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927991.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213431030 is about 14609.2789007535. The cubic root of 213431030 is about 597.6118311012.

Adding to 213431030 its reverse (30134312), we get a palindrome (243565342).

The spelling of 213431030 in words is "two hundred thirteen million, four hundred thirty-one thousand, thirty".