201043240442 has 32 divisors (see below), whose sum is σ = 343630577664. Its totient is φ = 87321682800.

The previous prime is 201043240427. The next prime is 201043240481. The reversal of 201043240442 is 244042340102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300983 + ... + 701909.

It is an arithmetic number, because the mean of its divisors is an integer number (10738455552).

Almost surely, 2^201043240442 is an apocalyptic number.

201043240442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201043240442 is a deficient number, since it is larger than the sum of its proper divisors (142587337222).

201043240442 is a wasteful number, since it uses less digits than its factorization.

201043240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401954.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 201043240442 its reverse (244042340102), we get a palindrome (445085580544).

The spelling of 201043240442 in words is "two hundred one billion, forty-three million, two hundred forty thousand, four hundred forty-two".