42144113309 has 4 divisors (see below), whose sum is σ = 42144544800. Its totient is φ = 42143681820.

The previous prime is 42144113303. The next prime is 42144113353. The reversal of 42144113309 is 90331144124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42144113309 - 2¹⁶ = 42144047773 is a prime.

It is a super-2 number, since 2×42144113309² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144113303) 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, 8354 + ... + 290444.

It is an arithmetic number, because the mean of its divisors is an integer number (10536136200).

Almost surely, 2^42144113309 is an apocalyptic number.

It is an amenable number.

42144113309 is a deficient number, since it is larger than the sum of its proper divisors (431491).

42144113309 is a wasteful number, since it uses less digits than its factorization.

42144113309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431490.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 42144113309 in words is "forty-two billion, one hundred forty-four million, one hundred thirteen thousand, three hundred nine".