42144032311 has 4 divisors (see below), whose sum is σ = 42152539192. Its totient is φ = 42135525432.

The previous prime is 42144032309. The next prime is 42144032341. The reversal of 42144032311 is 11323044124.

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 42144032311 - 2¹ = 42144032309 is a prime.

It is a super-2 number, since 2×42144032311² (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 (42144032341) 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, 4246005 + ... + 4255918.

It is an arithmetic number, because the mean of its divisors is an integer number (10538134798).

Almost surely, 2^42144032311 is an apocalyptic number.

42144032311 is a deficient number, since it is larger than the sum of its proper divisors (8506881).

42144032311 is an equidigital number, since it uses as much as digits as its factorization.

42144032311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8506880.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 42144032311 its reverse (11323044124), we get a palindrome (53467076435).

The spelling of 42144032311 in words is "forty-two billion, one hundred forty-four million, thirty-two thousand, three hundred eleven".