111312210131213 has 32 divisors (see below), whose sum is σ = 144212446371840. Its totient is φ = 83434544786880.

The previous prime is 111312210131131. The next prime is 111312210131233. The reversal of 111312210131213 is 312131012213111.

It is not a de Polignac number, because 111312210131213 - 2³² = 111307915163917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312210131233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115763606 + ... + 116721192.

It is an arithmetic number, because the mean of its divisors is an integer number (4506638949120).

Almost surely, 2^{111312210131213} is an apocalyptic number.

111312210131213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111312210131213 is a deficient number, since it is larger than the sum of its proper divisors (32900236240627).

111312210131213 is a wasteful number, since it uses less digits than its factorization.

111312210131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024857.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 111312210131213 its reverse (312131012213111), we get a palindrome (423443222344324).

The spelling of 111312210131213 in words is "one hundred eleven trillion, three hundred twelve billion, two hundred ten million, one hundred thirty-one thousand, two hundred thirteen".