131031011121 has 8 divisors (see below), whose sum is σ = 174710056224. Its totient is φ = 87352986720.

The previous prime is 131031011093. The next prime is 131031011149. The reversal of 131031011121 is 121110130131.

It is an interprime number because it is at equal distance from previous prime (131031011093) and next prime (131031011149).

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

It is not a de Polignac number, because 131031011121 - 2⁹ = 131031010609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131031011121.

It is not an unprimeable number, because it can be changed into a prime (131031061121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125490 + ... + 527076.

It is an arithmetic number, because the mean of its divisors is an integer number (21838757028).

Almost surely, 2^131031011121 is an apocalyptic number.

It is an amenable number.

131031011121 is a deficient number, since it is larger than the sum of its proper divisors (43679045103).

131031011121 is a wasteful number, since it uses less digits than its factorization.

131031011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510351.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 131031011121 its reverse (121110130131), we get a palindrome (252141141252).

The spelling of 131031011121 in words is "one hundred thirty-one billion, thirty-one million, eleven thousand, one hundred twenty-one".