2321212142 has 12 divisors (see below), whose sum is σ = 3606023616. Its totient is φ = 1120584360.

The previous prime is 2321212087. The next prime is 2321212169. The reversal of 2321212142 is 2412121232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 688334 + ... + 691697.

It is an arithmetic number, because the mean of its divisors is an integer number (300501968).

Almost surely, 2^2321212142 is an apocalyptic number.

2321212142 is a deficient number, since it is larger than the sum of its proper divisors (1284811474).

2321212142 is a wasteful number, since it uses less digits than its factorization.

2321212142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380091 (or 1380062 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 2321212142 is about 48178.9595362955. The cubic root of 2321212142 is about 1324.0517039559.

Adding to 2321212142 its reverse (2412121232), we get a palindrome (4733333374).

The spelling of 2321212142 in words is "two billion, three hundred twenty-one million, two hundred twelve thousand, one hundred forty-two".