20105155030339 has 4 divisors (see below), whose sum is σ = 20108465616856. Its totient is φ = 20101844443824.

The previous prime is 20105155030333. The next prime is 20105155030343. The reversal of 20105155030339 is 93303055150102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20105155030339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20105155030298 and 20105155030307.

It is not an unprimeable number, because it can be changed into a prime (20105155030333) 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, 1655284149 + ... + 1655296294.

It is an arithmetic number, because the mean of its divisors is an integer number (5027116404214).

Almost surely, 2^{20105155030339} is an apocalyptic number.

20105155030339 is a deficient number, since it is larger than the sum of its proper divisors (3310586517).

20105155030339 is an equidigital number, since it uses as much as digits as its factorization.

20105155030339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310586516.

The product of its (nonzero) digits is 60750, while the sum is 37.

The spelling of 20105155030339 in words is "twenty trillion, one hundred five billion, one hundred fifty-five million, thirty thousand, three hundred thirty-nine".