21031030130 has 32 divisors (see below), whose sum is σ = 41367775680. Its totient is φ = 7634595520.

The previous prime is 21031030129. The next prime is 21031030151. The reversal of 21031030130 is 3103013012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98285 + ... + 227424.

It is an arithmetic number, because the mean of its divisors is an integer number (1292742990).

Almost surely, 2^21031030130 is an apocalyptic number.

21031030130 is a deficient number, since it is larger than the sum of its proper divisors (20336745550).

21031030130 is a wasteful number, since it uses less digits than its factorization.

21031030130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326314.

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

Adding to 21031030130 its reverse (3103013012), we get a palindrome (24134043142).

The spelling of 21031030130 in words is "twenty-one billion, thirty-one million, thirty thousand, one hundred thirty".