400203103442 has 16 divisors (see below), whose sum is σ = 635633295840. Its totient is φ = 188325953088.

The previous prime is 400203103439. The next prime is 400203103457. The reversal of 400203103442 is 244301302004.

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, 1392533 + ... + 1655159.

It is an arithmetic number, because the mean of its divisors is an integer number (39727080990).

Almost surely, 2^400203103442 is an apocalyptic number.

400203103442 is a deficient number, since it is larger than the sum of its proper divisors (235430192398).

400203103442 is a wasteful number, since it uses less digits than its factorization.

400203103442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307465.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 400203103442 its reverse (244301302004), we get a palindrome (644504405446).

The spelling of 400203103442 in words is "four hundred billion, two hundred three million, one hundred three thousand, four hundred forty-two".