213131030 has 16 divisors (see below), whose sum is σ = 438441120. Its totient is φ = 73073472.

The previous prime is 213131027. The next prime is 213131047. The reversal of 213131030 is 30131312.

213131030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 213130996 and 213131014.

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, 1522295 + ... + 1522434.

It is an arithmetic number, because the mean of its divisors is an integer number (27402570).

Almost surely, 2^213131030 is an apocalyptic number.

213131030 is an abundant number, since it is smaller than the sum of its proper divisors (225310090).

213131030 is a wasteful number, since it uses less digits than its factorization.

213131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044743.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 213131030 is about 14599.0078430008. The cubic root of 213131030 is about 597.3316974898.

Adding to 213131030 its reverse (30131312), we get a palindrome (243262342).

The spelling of 213131030 in words is "two hundred thirteen million, one hundred thirty-one thousand, thirty".