111231033121013 has 8 divisors (see below), whose sum is σ = 122335931682048. Its totient is φ = 100490229594864.

The previous prime is 111231033120997. The next prime is 111231033121037. The reversal of 111231033121013 is 310121330132111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111231033121013 - 2⁴ = 111231033120997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111231033121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111231033121613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91023758081 + ... + 91023759302.

It is an arithmetic number, because the mean of its divisors is an integer number (15291991460256).

Almost surely, 2^{111231033121013} is an apocalyptic number.

111231033121013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111231033121013 is a deficient number, since it is larger than the sum of its proper divisors (11104898561035).

111231033121013 is a wasteful number, since it uses less digits than its factorization.

111231033121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182047517443.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 111231033121013 its reverse (310121330132111), we get a palindrome (421352363253124).

The spelling of 111231033121013 in words is "one hundred eleven trillion, two hundred thirty-one billion, thirty-three million, one hundred twenty-one thousand, thirteen".