20105155030342 has 16 divisors (see below), whose sum is σ = 30187671866352. Its totient is φ = 10042599146080.

The previous prime is 20105155030333. The next prime is 20105155030343. The reversal of 20105155030342 is 24303055150102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20105155030343) 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, 28888368 + ... + 29576140.

It is an arithmetic number, because the mean of its divisors is an integer number (1886729491647).

Almost surely, 2^{20105155030342} is an apocalyptic number.

20105155030342 is a deficient number, since it is larger than the sum of its proper divisors (10082516836010).

20105155030342 is a wasteful number, since it uses less digits than its factorization.

20105155030342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702263.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 20105155030342 in words is "twenty trillion, one hundred five billion, one hundred fifty-five million, thirty thousand, three hundred forty-two".