42344003121 has 48 divisors (see below), whose sum is σ = 69589558080. Its totient is φ = 22756930560.

The previous prime is 42344003089. The next prime is 42344003147. The reversal of 42344003121 is 12130044324.

It is not a de Polignac number, because 42344003121 - 2⁵ = 42344003089 is a prime.

It is a super-2 number, since 2×42344003121² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42344003091 and 42344003100.

It is not an unprimeable number, because it can be changed into a prime (42344003021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4015626 + ... + 4026156.

It is an arithmetic number, because the mean of its divisors is an integer number (1449782460).

Almost surely, 2^42344003121 is an apocalyptic number.

It is an amenable number.

42344003121 is a deficient number, since it is larger than the sum of its proper divisors (27245554959).

42344003121 is a wasteful number, since it uses less digits than its factorization.

42344003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12174 (or 12167 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42344003121 its reverse (12130044324), we get a palindrome (54474047445).

The spelling of 42344003121 in words is "forty-two billion, three hundred forty-four million, three thousand, one hundred twenty-one".