203433053442 has 16 divisors (see below), whose sum is σ = 407120258592. Its totient is φ = 67768659200.

The previous prime is 203433053419. The next prime is 203433053443. The reversal of 203433053442 is 244350334302.

It is not an unprimeable number, because it can be changed into a prime (203433053443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10579248 + ... + 10598459.

It is an arithmetic number, because the mean of its divisors is an integer number (25445016162).

Almost surely, 2^203433053442 is an apocalyptic number.

203433053442 is an abundant number, since it is smaller than the sum of its proper divisors (203687205150).

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

203433053442 is a wasteful number, since it uses less digits than its factorization.

203433053442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21179313.

The product of its (nonzero) digits is 103680, while the sum is 33.

Adding to 203433053442 its reverse (244350334302), we get a palindrome (447783387744).

The spelling of 203433053442 in words is "two hundred three billion, four hundred thirty-three million, fifty-three thousand, four hundred forty-two".