42104043213 has 4 divisors (see below), whose sum is σ = 56138724288. Its totient is φ = 28069362140.

The previous prime is 42104043169. The next prime is 42104043221. The reversal of 42104043213 is 31234040124.

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.

It is a cyclic number.

It is not a de Polignac number, because 42104043213 - 2¹³ = 42104035021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42104043413) 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, 7017340533 + ... + 7017340538.

It is an arithmetic number, because the mean of its divisors is an integer number (14034681072).

Almost surely, 2^42104043213 is an apocalyptic number.

It is an amenable number.

42104043213 is a deficient number, since it is larger than the sum of its proper divisors (14034681075).

42104043213 is a wasteful number, since it uses less digits than its factorization.

42104043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14034681074.

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

Adding to 42104043213 its reverse (31234040124), we get a palindrome (73338083337).

The spelling of 42104043213 in words is "forty-two billion, one hundred four million, forty-three thousand, two hundred thirteen".