42312040013 has 16 divisors (see below), whose sum is σ = 43803975600. Its totient is φ = 40839676416.

The previous prime is 42312040007. The next prime is 42312040073. The reversal of 42312040013 is 31004021324.

It can be written as a sum of positive squares in 8 ways, for example, as 8715716164 + 33596323849 = 93358^2 + 183293^2 .

It is a cyclic number.

It is not a de Polignac number, because 42312040013 - 2¹⁶ = 42311974477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42312040073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2535545 + ... + 2552177.

It is an arithmetic number, because the mean of its divisors is an integer number (2737748475).

Almost surely, 2^42312040013 is an apocalyptic number.

It is an amenable number.

42312040013 is a deficient number, since it is larger than the sum of its proper divisors (1491935587).

42312040013 is a wasteful number, since it uses less digits than its factorization.

42312040013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17216.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 42312040013 its reverse (31004021324), we get a palindrome (73316061337).

The spelling of 42312040013 in words is "forty-two billion, three hundred twelve million, forty thousand, thirteen".