203111040240242 has 16 divisors (see below), whose sum is σ = 336613693289472. Its totient is φ = 91425941386560.

The previous prime is 203111040240223. The next prime is 203111040240313. The reversal of 203111040240242 is 242042040111302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129866393234 + ... + 129866394797.

It is an arithmetic number, because the mean of its divisors is an integer number (21038355830592).

Almost surely, 2^{203111040240242} is an apocalyptic number.

203111040240242 is a deficient number, since it is larger than the sum of its proper divisors (133502653049230).

203111040240242 is a wasteful number, since it uses less digits than its factorization.

203111040240242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259732788073.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 203111040240242 its reverse (242042040111302), we get a palindrome (445153080351544).

The spelling of 203111040240242 in words is "two hundred three trillion, one hundred eleven billion, forty million, two hundred forty thousand, two hundred forty-two".