2131230634 has 8 divisors (see below), whose sum is σ = 3442757220. Its totient is φ = 983644896.

The previous prime is 2131230631. The next prime is 2131230649. The reversal of 2131230634 is 4360321312.

It can be written as a sum of positive squares in 2 ways, for example, as 2131207225 + 23409 = 46165^2 + 153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2131230599 and 2131230608.

It is not an unprimeable number, because it can be changed into a prime (2131230631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40985179 + ... + 40985230.

Almost surely, 2^2131230634 is an apocalyptic number.

2131230634 is a deficient number, since it is larger than the sum of its proper divisors (1311526586).

2131230634 is a wasteful number, since it uses less digits than its factorization.

2131230634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81970424.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2131230634 is about 46165.2535355325. The cubic root of 2131230634 is about 1286.8960958815.

Adding to 2131230634 its reverse (4360321312), we get a palindrome (6491551946).

The spelling of 2131230634 in words is "two billion, one hundred thirty-one million, two hundred thirty thousand, six hundred thirty-four".