42420212113 has 4 divisors (see below), whose sum is σ = 42420684528. Its totient is φ = 42419739700.

The previous prime is 42420212111. The next prime is 42420212137. The reversal of 42420212113 is 31121202424.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42420212113 - 2¹ = 42420212111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42420212111) 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, 55363 + ... + 296488.

It is an arithmetic number, because the mean of its divisors is an integer number (10605171132).

Almost surely, 2^42420212113 is an apocalyptic number.

It is an amenable number.

42420212113 is a deficient number, since it is larger than the sum of its proper divisors (472415).

42420212113 is a wasteful number, since it uses less digits than its factorization.

42420212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472414.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 42420212113 its reverse (31121202424), we get a palindrome (73541414537).

The spelling of 42420212113 in words is "forty-two billion, four hundred twenty million, two hundred twelve thousand, one hundred thirteen".