102040300242 has 24 divisors (see below), whose sum is σ = 232723492560. Its totient is φ = 32223252600.

The previous prime is 102040300177. The next prime is 102040300249. The reversal of 102040300242 is 242003040201.

102040300242 is a `hidden beast` number, since 1 + 0 + 20 + 403 + 0 + 0 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102040300249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149181384 + ... + 149182067.

It is an arithmetic number, because the mean of its divisors is an integer number (9696812190).

Almost surely, 2^102040300242 is an apocalyptic number.

102040300242 is an abundant number, since it is smaller than the sum of its proper divisors (130683192318).

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

102040300242 is a wasteful number, since it uses less digits than its factorization.

102040300242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298363478 (or 298363475 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 102040300242 its reverse (242003040201), we get a palindrome (344043340443).

The spelling of 102040300242 in words is "one hundred two billion, forty million, three hundred thousand, two hundred forty-two".