111213311420 has 48 divisors (see below), whose sum is σ = 250006780800. Its totient is φ = 41429678400.

The previous prime is 111213311399. The next prime is 111213311453. The reversal of 111213311420 is 24113312111.

111213311420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111213311392 and 111213311401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2457806 + ... + 2502645.

It is an arithmetic number, because the mean of its divisors is an integer number (5208474600).

Almost surely, 2^111213311420 is an apocalyptic number.

111213311420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111213311420 is an abundant number, since it is smaller than the sum of its proper divisors (138793469380).

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

111213311420 is a wasteful number, since it uses less digits than its factorization.

111213311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960538 (or 4960536 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 111213311420 its reverse (24113312111), we get a palindrome (135326623531).

The spelling of 111213311420 in words is "one hundred eleven billion, two hundred thirteen million, three hundred eleven thousand, four hundred twenty".