20111112121308 has 96 divisors (see below), whose sum is σ = 54492833015040. Its totient is φ = 5719364328960.

The previous prime is 20111112121297. The next prime is 20111112121381. The reversal of 20111112121308 is 80312121111102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82623910 + ... + 82866957.

It is an arithmetic number, because the mean of its divisors is an integer number (567633677240).

Almost surely, 2^{20111112121308} is an apocalyptic number.

It is an amenable number.

20111112121308 is an abundant number, since it is smaller than the sum of its proper divisors (34381720893732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111112121308 is a wasteful number, since it uses less digits than its factorization.

20111112121308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165490947 (or 165490945 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 24.

The spelling of 20111112121308 in words is "twenty trillion, one hundred eleven billion, one hundred twelve million, one hundred twenty-one thousand, three hundred eight".