111312212011320 has 64 divisors (see below), whose sum is σ = 351512248464000. Its totient is φ = 28120979875968.

The previous prime is 111312212011313. The next prime is 111312212011327. The reversal of 111312212011320 is 23110212213111.

111312212011320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (111312212011313) and next prime (111312212011327).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312212011327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24410570530 + ... + 24410575089.

It is an arithmetic number, because the mean of its divisors is an integer number (5492378882250).

Almost surely, 2^{111312212011320} is an apocalyptic number.

111312212011320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111312212011320 is an abundant number, since it is smaller than the sum of its proper divisors (240200036452680).

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

111312212011320 is a wasteful number, since it uses less digits than its factorization.

111312212011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48821145652 (or 48821145648 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 111312212011320 its reverse (23110212213111), we get a palindrome (134422424224431).

The spelling of 111312212011320 in words is "one hundred eleven trillion, three hundred twelve billion, two hundred twelve million, eleven thousand, three hundred twenty".