113121131321 has 8 divisors (see below), whose sum is σ = 123554100384. Its totient is φ = 102713033920.

The previous prime is 113121131317. The next prime is 113121131323. The reversal of 113121131321 is 123131121311.

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 113121131321 - 2² = 113121131317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113121131293 and 113121131302.

It is not an unprimeable number, because it can be changed into a prime (113121131323) 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, 6208400 + ... + 6226593.

It is an arithmetic number, because the mean of its divisors is an integer number (15444262548).

Almost surely, 2^113121131321 is an apocalyptic number.

113121131321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113121131321 is a deficient number, since it is larger than the sum of its proper divisors (10432969063).

113121131321 is a wasteful number, since it uses less digits than its factorization.

113121131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12435831.

The product of its digits is 108, while the sum is 20.

Adding to 113121131321 its reverse (123131121311), we get a palindrome (236252252632).

It can be divided in two parts, 113121 and 131321, that added together give a palindrome (244442).

The spelling of 113121131321 in words is "one hundred thirteen billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred twenty-one".