20113110312312 has 16 divisors (see below), whose sum is σ = 50282775780840. Its totient is φ = 6704370104096.

The previous prime is 20113110312277. The next prime is 20113110312341. The reversal of 20113110312312 is 21321301131102.

It is a congruent number.

It is an unprimeable number.

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, 419023131483 + ... + 419023131530.

Almost surely, 2^{20113110312312} is an apocalyptic number.

It is an amenable number.

20113110312312 is an abundant number, since it is smaller than the sum of its proper divisors (30169665468528).

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

20113110312312 is a wasteful number, since it uses less digits than its factorization.

20113110312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838046263022 (or 838046263018 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 20113110312312 its reverse (21321301131102), we get a palindrome (41434411443414).

The spelling of 20113110312312 in words is "twenty trillion, one hundred thirteen billion, one hundred ten million, three hundred twelve thousand, three hundred twelve".