111213112032 has 144 divisors (see below), whose sum is σ = 345709728000. Its totient is φ = 33632928000.

The previous prime is 111213112001. The next prime is 111213112037. The reversal of 111213112032 is 230211312111.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111213111996 and 111213112014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213112037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1545657 + ... + 1616007.

It is an arithmetic number, because the mean of its divisors is an integer number (2400762000).

Almost surely, 2^111213112032 is an apocalyptic number.

111213112032 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 111213112032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172854864000).

111213112032 is an abundant number, since it is smaller than the sum of its proper divisors (234496615968).

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

111213112032 is a wasteful number, since it uses less digits than its factorization.

111213112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70877 (or 70866 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111213112032 its reverse (230211312111), we get a palindrome (341424424143).

The spelling of 111213112032 in words is "one hundred eleven billion, two hundred thirteen million, one hundred twelve thousand, thirty-two".