131000031121321 has 8 divisors (see below), whose sum is σ = 131145506129664. Its totient is φ = 130854559792320.

The previous prime is 131000031121313. The next prime is 131000031121331. The reversal of 131000031121321 is 123121130000131.

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 131000031121321 - 2³ = 131000031121313 is a prime.

It is a super-2 number, since 2×131000031121321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131000031121301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73684161 + ... + 75441073.

It is an arithmetic number, because the mean of its divisors is an integer number (16393188266208).

Almost surely, 2^{131000031121321} is an apocalyptic number.

It is an amenable number.

131000031121321 is a deficient number, since it is larger than the sum of its proper divisors (145475008343).

131000031121321 is an equidigital number, since it uses as much as digits as its factorization.

131000031121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839671.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131000031121321 its reverse (123121130000131), we get a palindrome (254121161121452).

The spelling of 131000031121321 in words is "one hundred thirty-one trillion, thirty-one million, one hundred twenty-one thousand, three hundred twenty-one".