2143242102 has 32 divisors (see below), whose sum is σ = 4478100480. Its totient is φ = 683033760.

The previous prime is 2143242007. The next prime is 2143242107. The reversal of 2143242102 is 2012423412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143242107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53977 + ... + 84852.

It is an arithmetic number, because the mean of its divisors is an integer number (139940640).

Almost surely, 2^2143242102 is an apocalyptic number.

2143242102 is an abundant number, since it is smaller than the sum of its proper divisors (2334858378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143242102 is a wasteful number, since it uses less digits than its factorization.

2143242102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138948.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2143242102 is about 46295.1628358730. The cubic root of 2143242102 is about 1289.3091872443.

Adding to 2143242102 its reverse (2012423412), we get a palindrome (4155665514).

The spelling of 2143242102 in words is "two billion, one hundred forty-three million, two hundred forty-two thousand, one hundred two".