20113146004439 has 2 divisors, whose sum is σ = 20113146004440. Its totient is φ = 20113146004438.

The previous prime is 20113146004403. The next prime is 20113146004517. The reversal of 20113146004439 is 93440064131102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20113146004439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113146006439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056573002219 + 10056573002220.

It is an arithmetic number, because the mean of its divisors is an integer number (10056573002220).

Almost surely, 2^{20113146004439} is an apocalyptic number.

20113146004439 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113146004439 is an equidigital number, since it uses as much as digits as its factorization.

20113146004439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 20113146004439 in words is "twenty trillion, one hundred thirteen billion, one hundred forty-six million, four thousand, four hundred thirty-nine".