42444132131 has 4 divisors (see below), whose sum is σ = 42445149072. Its totient is φ = 42443115192.

The previous prime is 42444132121. The next prime is 42444132193. The reversal of 42444132131 is 13123144424.

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-42444132131 is a prime.

It is a super-2 number, since 2×42444132131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42444132094 and 42444132103.

It is not an unprimeable number, because it can be changed into a prime (42444132121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443060 + ... + 530273.

It is an arithmetic number, because the mean of its divisors is an integer number (10611287268).

Almost surely, 2^42444132131 is an apocalyptic number.

42444132131 is a deficient number, since it is larger than the sum of its proper divisors (1016941).

42444132131 is an equidigital number, since it uses as much as digits as its factorization.

42444132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016940.

The product of its digits is 9216, while the sum is 29.

Adding to 42444132131 its reverse (13123144424), we get a palindrome (55567276555).

The spelling of 42444132131 in words is "forty-two billion, four hundred forty-four million, one hundred thirty-two thousand, one hundred thirty-one".