203011330242 has 32 divisors (see below), whose sum is σ = 480026793600. Its totient is φ = 56003125248.

The previous prime is 203011330237. The next prime is 203011330243. The reversal of 203011330242 is 242033110302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (203011330243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83336767 + ... + 83339202.

It is an arithmetic number, because the mean of its divisors is an integer number (15000837300).

Almost surely, 2^203011330242 is an apocalyptic number.

203011330242 is an abundant number, since it is smaller than the sum of its proper divisors (277015463358).

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

203011330242 is a wasteful number, since it uses less digits than its factorization.

203011330242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166676010.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203011330242 its reverse (242033110302), we get a palindrome (445044440544).

The spelling of 203011330242 in words is "two hundred three billion, eleven million, three hundred thirty thousand, two hundred forty-two".