400003110331042 has 4 divisors (see below), whose sum is σ = 600004665496566. Its totient is φ = 200001555165520.

The previous prime is 400003110331021. The next prime is 400003110331049. The reversal of 400003110331042 is 240133011300004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 238082091748281 + 161921018582761 = 15429909^2 + 12724819^2 .

It is not an unprimeable number, because it can be changed into a prime (400003110331049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100000777582759 + ... + 100000777582762.

Almost surely, 2^{400003110331042} is an apocalyptic number.

400003110331042 is a deficient number, since it is larger than the sum of its proper divisors (200001555165524).

400003110331042 is a wasteful number, since it uses less digits than its factorization.

400003110331042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200001555165523.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 400003110331042 its reverse (240133011300004), we get a palindrome (640136121631046).

The spelling of 400003110331042 in words is "four hundred trillion, three billion, one hundred ten million, three hundred thirty-one thousand, forty-two".