11311112323212 has 48 divisors (see below), whose sum is σ = 28823116154112. Its totient is φ = 3431323344960.

The previous prime is 11311112323117. The next prime is 11311112323213. The reversal of 11311112323212 is 21232321111311.

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 (11311112323213) 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, 510602518 + ... + 510624669.

It is an arithmetic number, because the mean of its divisors is an integer number (600481586544).

Almost surely, 2^{11311112323212} is an apocalyptic number.

11311112323212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11311112323212 is an abundant number, since it is smaller than the sum of its proper divisors (17512003830900).

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

11311112323212 is a wasteful number, since it uses less digits than its factorization.

11311112323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021227278 (or 1021227276 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

Adding to 11311112323212 its reverse (21232321111311), we get a palindrome (32543433434523).

The spelling of 11311112323212 in words is "eleven trillion, three hundred eleven billion, one hundred twelve million, three hundred twenty-three thousand, two hundred twelve".