111213230021232 has 160 divisors (see below), whose sum is σ = 298889441280000. Its totient is φ = 35595495048960.

The previous prime is 111213230021191. The next prime is 111213230021269. The reversal of 111213230021232 is 232120032312111.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 105781119 + ... + 106827297.

It is an arithmetic number, because the mean of its divisors is an integer number (1868059008000).

Almost surely, 2^{111213230021232} is an apocalyptic number.

111213230021232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111213230021232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149444720640000).

111213230021232 is an abundant number, since it is smaller than the sum of its proper divisors (187676211258768).

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

111213230021232 is a wasteful number, since it uses less digits than its factorization.

111213230021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046779 (or 1046773 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 111213230021232 its reverse (232120032312111), we get a palindrome (343333262333343).

The spelling of 111213230021232 in words is "one hundred eleven trillion, two hundred thirteen billion, two hundred thirty million, twenty-one thousand, two hundred thirty-two".