42144323201 has 4 divisors (see below), whose sum is σ = 42146386992. Its totient is φ = 42142259412.

The previous prime is 42144323197. The next prime is 42144323209. The reversal of 42144323201 is 10232344124.

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.

It is a cyclic number.

It is not a de Polignac number, because 42144323201 - 2² = 42144323197 is a prime.

It is a super-2 number, since 2×42144323201² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42144323209) 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, 1000955 + ... + 1042208.

It is an arithmetic number, because the mean of its divisors is an integer number (10536596748).

Almost surely, 2^42144323201 is an apocalyptic number.

It is an amenable number.

42144323201 is a deficient number, since it is larger than the sum of its proper divisors (2063791).

42144323201 is a wasteful number, since it uses less digits than its factorization.

42144323201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063790.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 42144323201 its reverse (10232344124), we get a palindrome (52376667325).

The spelling of 42144323201 in words is "forty-two billion, one hundred forty-four million, three hundred twenty-three thousand, two hundred one".