131121113321 has 8 divisors (see below), whose sum is σ = 143047210944. Its totient is φ = 119196015120.

The previous prime is 131121113303. The next prime is 131121113341. The reversal of 131121113321 is 123311121131.

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 131121113321 - 2¹⁸ = 131120851177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131121113293 and 131121113302.

It is not an unprimeable number, because it can be changed into a prime (131121113341) 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, 38996 + ... + 513578.

It is an arithmetic number, because the mean of its divisors is an integer number (17880901368).

Almost surely, 2^131121113321 is an apocalyptic number.

131121113321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131121113321 is a deficient number, since it is larger than the sum of its proper divisors (11926097623).

131121113321 is a wasteful number, since it uses less digits than its factorization.

131121113321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499711.

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

Adding to 131121113321 its reverse (123311121131), we get a palindrome (254432234452).

It can be divided in two parts, 131121 and 113321, that added together give a palindrome (244442).

The spelling of 131121113321 in words is "one hundred thirty-one billion, one hundred twenty-one million, one hundred thirteen thousand, three hundred twenty-one".