42404244311023 has 4 divisors (see below), whose sum is σ = 48461993498320. Its totient is φ = 36346495123728.

The previous prime is 42404244310937. The next prime is 42404244311047. The reversal of 42404244311023 is 32011344240424.

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-42404244311023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42404244311023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404242311023) 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, 3028874593638 + ... + 3028874593651.

It is an arithmetic number, because the mean of its divisors is an integer number (12115498374580).

Almost surely, 2^{42404244311023} is an apocalyptic number.

42404244311023 is a deficient number, since it is larger than the sum of its proper divisors (6057749187297).

42404244311023 is an equidigital number, since it uses as much as digits as its factorization.

42404244311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057749187296.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 42404244311023 its reverse (32011344240424), we get a palindrome (74415588551447).

The spelling of 42404244311023 in words is "forty-two trillion, four hundred four billion, two hundred forty-four million, three hundred eleven thousand, twenty-three".