102042520242 has 32 divisors (see below), whose sum is σ = 220049148480. Its totient is φ = 31359804480.

The previous prime is 102042520189. The next prime is 102042520277. The reversal of 102042520242 is 242025240201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724384 + ... + 853707.

It is an arithmetic number, because the mean of its divisors is an integer number (6876535890).

Almost surely, 2^102042520242 is an apocalyptic number.

102042520242 is an abundant number, since it is smaller than the sum of its proper divisors (118006628238).

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

102042520242 is a wasteful number, since it uses less digits than its factorization.

102042520242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578938.

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 102042520242 its reverse (242025240201), we get a palindrome (344067760443).

The spelling of 102042520242 in words is "one hundred two billion, forty-two million, five hundred twenty thousand, two hundred forty-two".