102323240542 has 16 divisors (see below), whose sum is σ = 156691260000. Its totient is φ = 50102493280.

The previous prime is 102323240497. The next prime is 102323240611. The reversal of 102323240542 is 245042323201.

It is a self number, because there is not a number n which added to its sum of digits gives 102323240542.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2396917 + ... + 2439232.

It is an arithmetic number, because the mean of its divisors is an integer number (9793203750).

Almost surely, 2^102323240542 is an apocalyptic number.

102323240542 is a deficient number, since it is larger than the sum of its proper divisors (54368019458).

102323240542 is a wasteful number, since it uses less digits than its factorization.

102323240542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836371.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 102323240542 its reverse (245042323201), we get a palindrome (347365563743).

The spelling of 102323240542 in words is "one hundred two billion, three hundred twenty-three million, two hundred forty thousand, five hundred forty-two".