102120103442 has 16 divisors (see below), whose sum is σ = 175130610432. Its totient is φ = 43748864640.

The previous prime is 102120103411. The next prime is 102120103457. The reversal of 102120103442 is 244301021201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1370234 + ... + 1442837.

It is an arithmetic number, because the mean of its divisors is an integer number (10945663152).

Almost surely, 2^102120103442 is an apocalyptic number.

102120103442 is a deficient number, since it is larger than the sum of its proper divisors (73010506990).

102120103442 is a wasteful number, since it uses less digits than its factorization.

102120103442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815673.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102120103442 its reverse (244301021201), we get a palindrome (346421124643).

The spelling of 102120103442 in words is "one hundred two billion, one hundred twenty million, one hundred three thousand, four hundred forty-two".