442431100023403 has 4 divisors (see below), whose sum is σ = 443399220592840. Its totient is φ = 441462979453968.

The previous prime is 442431100023377. The next prime is 442431100023443. The reversal of 442431100023403 is 304320001134244.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442431100023403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442431100023443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484060284033 + ... + 484060284946.

It is an arithmetic number, because the mean of its divisors is an integer number (110849805148210).

Almost surely, 2^{442431100023403} is an apocalyptic number.

442431100023403 is a deficient number, since it is larger than the sum of its proper divisors (968120569437).

442431100023403 is an equidigital number, since it uses as much as digits as its factorization.

442431100023403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968120569436.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 442431100023403 its reverse (304320001134244), we get a palindrome (746751101157647).

The spelling of 442431100023403 in words is "four hundred forty-two trillion, four hundred thirty-one billion, one hundred million, twenty-three thousand, four hundred three".