102002342442 has 384 divisors, whose sum is σ = 298888869888. Its totient is φ = 22752576000.

The previous prime is 102002342359. The next prime is 102002342443. The reversal of 102002342442 is 244243200201.

It is not an unprimeable number, because it can be changed into a prime (102002342443) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 35776317 + ... + 35779167.

It is an arithmetic number, because the mean of its divisors is an integer number (778356432).

Almost surely, 2^102002342442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102002342442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149444434944).

102002342442 is an abundant number, since it is smaller than the sum of its proper divisors (196886527446).

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

102002342442 is a wasteful number, since it uses less digits than its factorization.

102002342442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954 (or 2947 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 102002342442 its reverse (244243200201), we get a palindrome (346245542643).

It can be divided in two parts, 102002 and 342442, that added together give a palindrome (444444).

The spelling of 102002342442 in words is "one hundred two billion, two million, three hundred forty-two thousand, four hundred forty-two".