102432321442 has 16 divisors (see below), whose sum is σ = 167627188512. Its totient is φ = 46557184320.

The previous prime is 102432321427. The next prime is 102432321443. The reversal of 102432321442 is 244123234201.

It is a self number, because there is not a number n which added to its sum of digits gives 102432321442.

It is not an unprimeable number, because it can be changed into a prime (102432321443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226693 + ... + 506215.

It is an arithmetic number, because the mean of its divisors is an integer number (10476699282).

Almost surely, 2^102432321442 is an apocalyptic number.

102432321442 is a deficient number, since it is larger than the sum of its proper divisors (65194867070).

102432321442 is a wasteful number, since it uses less digits than its factorization.

102432321442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296193.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 102432321442 its reverse (244123234201), we get a palindrome (346555555643).

The spelling of 102432321442 in words is "one hundred two billion, four hundred thirty-two million, three hundred twenty-one thousand, four hundred forty-two".