42120412013 has 8 divisors (see below), whose sum is σ = 43023815040. Its totient is φ = 41217310080.

The previous prime is 42120412007. The next prime is 42120412057. The reversal of 42120412013 is 31021402124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42120412013 - 2⁴ = 42120411997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120412813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219773 + ... + 364061.

It is an arithmetic number, because the mean of its divisors is an integer number (5377976880).

Almost surely, 2^42120412013 is an apocalyptic number.

It is an amenable number.

42120412013 is a deficient number, since it is larger than the sum of its proper divisors (903403027).

42120412013 is a wasteful number, since it uses less digits than its factorization.

42120412013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150547.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 42120412013 its reverse (31021402124), we get a palindrome (73141814137).

The spelling of 42120412013 in words is "forty-two billion, one hundred twenty million, four hundred twelve thousand, thirteen".