421442540013 has 16 divisors (see below), whose sum is σ = 613104005952. Its totient is φ = 255379440000.

The previous prime is 421442539993. The next prime is 421442540017. The reversal of 421442540013 is 310045244124.

It is not a de Polignac number, because 421442540013 - 2¹⁶ = 421442474477 is a prime.

It is a super-2 number, since 2×421442540013² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421442540017) 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, 793938 + ... + 1213763.

It is an arithmetic number, because the mean of its divisors is an integer number (38319000372).

Almost surely, 2^421442540013 is an apocalyptic number.

It is an amenable number.

421442540013 is a deficient number, since it is larger than the sum of its proper divisors (191661465939).

421442540013 is a wasteful number, since it uses less digits than its factorization.

421442540013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014076.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 421442540013 its reverse (310045244124), we get a palindrome (731487784137).

The spelling of 421442540013 in words is "four hundred twenty-one billion, four hundred forty-two million, five hundred forty thousand, thirteen".