2002523521242 has 24 divisors (see below), whose sum is σ = 4186750506624. Its totient is φ = 638485759384.

The previous prime is 2002523521241. The next prime is 2002523521249. The reversal of 2002523521242 is 2421253252002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2002523521241) 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, 315454218 + ... + 315460565.

It is an arithmetic number, because the mean of its divisors is an integer number (174447937776).

Almost surely, 2^{2002523521242} is an apocalyptic number.

2002523521242 is an abundant number, since it is smaller than the sum of its proper divisors (2184226985382).

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

2002523521242 is a wasteful number, since it uses less digits than its factorization.

2002523521242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630914834 (or 630914811 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 2002523521242 its reverse (2421253252002), we get a palindrome (4423776773244).

The spelling of 2002523521242 in words is "two trillion, two billion, five hundred twenty-three million, five hundred twenty-one thousand, two hundred forty-two".