2143240102 has 4 divisors (see below), whose sum is σ = 3214860156. Its totient is φ = 1071620050.

The previous prime is 2143240097. The next prime is 2143240111. The reversal of 2143240102 is 2010423412.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2143240102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535810024 + ... + 535810027.

It is an arithmetic number, because the mean of its divisors is an integer number (803715039).

Almost surely, 2^2143240102 is an apocalyptic number.

2143240102 is a deficient number, since it is larger than the sum of its proper divisors (1071620054).

2143240102 is a wasteful number, since it uses less digits than its factorization.

2143240102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071620053.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2143240102 is about 46295.1412353392. The cubic root of 2143240102 is about 1289.3087861978.

Adding to 2143240102 its reverse (2010423412), we get a palindrome (4153663514).

The spelling of 2143240102 in words is "two billion, one hundred forty-three million, two hundred forty thousand, one hundred two".