42102043021213 has 4 divisors (see below), whose sum is σ = 48116620595680. Its totient is φ = 36087465446748.

The previous prime is 42102043021187. The next prime is 42102043021253. The reversal of 42102043021213 is 31212034020124.

42102043021213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42102043021213 - 2²¹ = 42102040924061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102043021253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3007288787223 + ... + 3007288787236.

It is an arithmetic number, because the mean of its divisors is an integer number (12029155148920).

Almost surely, 2^{42102043021213} is an apocalyptic number.

It is an amenable number.

42102043021213 is a deficient number, since it is larger than the sum of its proper divisors (6014577574467).

42102043021213 is an equidigital number, since it uses as much as digits as its factorization.

42102043021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6014577574466.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 42102043021213 its reverse (31212034020124), we get a palindrome (73314077041337).

The spelling of 42102043021213 in words is "forty-two trillion, one hundred two billion, forty-three million, twenty-one thousand, two hundred thirteen".