203403404401442 has 192 divisors, whose sum is σ = 387749889146880. Its totient is φ = 78275347401600.

The previous prime is 203403404401441. The next prime is 203403404401459. The reversal of 203403404401442 is 244104404304302.

It is not an unprimeable number, because it can be changed into a prime (203403404401441) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2505019988 + ... + 2505101184.

It is an arithmetic number, because the mean of its divisors is an integer number (2019530672640).

Almost surely, 2^{203403404401442} is an apocalyptic number.

203403404401442 is a deficient number, since it is larger than the sum of its proper divisors (184346484745438).

203403404401442 is a wasteful number, since it uses less digits than its factorization.

203403404401442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81605 (or 81586 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 203403404401442 its reverse (244104404304302), we get a palindrome (447507808705744).

The spelling of 203403404401442 in words is "two hundred three trillion, four hundred three billion, four hundred four million, four hundred one thousand, four hundred forty-two".