111312121212132 has 48 divisors (see below), whose sum is σ = 266756938069440. Its totient is φ = 36100014256512.

The previous prime is 111312121212073. The next prime is 111312121212133. The reversal of 111312121212132 is 231212121213111.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (111312121212133) 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, 9046419 + ... + 17448837.

It is an arithmetic number, because the mean of its divisors is an integer number (5557436209780).

Almost surely, 2^{111312121212132} is an apocalyptic number.

111312121212132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111312121212132 is an abundant number, since it is smaller than the sum of its proper divisors (155444816857308).

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

111312121212132 is a wasteful number, since it uses less digits than its factorization.

111312121212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8432300 (or 8432298 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

Adding to 111312121212132 its reverse (231212121213111), we get a palindrome (342524242425243).

The spelling of 111312121212132 in words is "one hundred eleven trillion, three hundred twelve billion, one hundred twenty-one million, two hundred twelve thousand, one hundred thirty-two".