2131230242 has 48 divisors (see below), whose sum is σ = 3439962240. Its totient is φ = 989561664.

The previous prime is 2131230221. The next prime is 2131230349. The reversal of 2131230242 is 2420321312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5713568 + ... + 5713940.

It is an arithmetic number, because the mean of its divisors is an integer number (71665880).

Almost surely, 2^2131230242 is an apocalyptic number.

2131230242 is a deficient number, since it is larger than the sum of its proper divisors (1308731998).

2131230242 is a wasteful number, since it uses less digits than its factorization.

2131230242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2131230242 is about 46165.2492899150. The cubic root of 2131230242 is about 1286.8960169814.

Adding to 2131230242 its reverse (2420321312), we get a palindrome (4551551554).

The spelling of 2131230242 in words is "two billion, one hundred thirty-one million, two hundred thirty thousand, two hundred forty-two".