42401433235423 has 4 divisors (see below), whose sum is σ = 43034290447960. Its totient is φ = 41768576022888.

The previous prime is 42401433235397. The next prime is 42401433235463. The reversal of 42401433235423 is 32453233410424.

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

It is a cyclic number.

It is not a de Polignac number, because 42401433235423 - 2⁹ = 42401433234911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42401433235463) 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, 316428606168 + ... + 316428606301.

It is an arithmetic number, because the mean of its divisors is an integer number (10758572611990).

Almost surely, 2^{42401433235423} is an apocalyptic number.

42401433235423 is a deficient number, since it is larger than the sum of its proper divisors (632857212537).

42401433235423 is an equidigital number, since it uses as much as digits as its factorization.

42401433235423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632857212536.

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 42401433235423 its reverse (32453233410424), we get a palindrome (74854666645847).

The spelling of 42401433235423 in words is "forty-two trillion, four hundred one billion, four hundred thirty-three million, two hundred thirty-five thousand, four hundred twenty-three".