131031221102 has 8 divisors (see below), whose sum is σ = 206891401800. Its totient is φ = 62067420504.

The previous prime is 131031221033. The next prime is 131031221129. The reversal of 131031221102 is 201122130131.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1724094977 + ... + 1724095052.

It is an arithmetic number, because the mean of its divisors is an integer number (25861425225).

Almost surely, 2^131031221102 is an apocalyptic number.

131031221102 is a deficient number, since it is larger than the sum of its proper divisors (75860180698).

131031221102 is a wasteful number, since it uses less digits than its factorization.

131031221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448190050.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131031221102 its reverse (201122130131), we get a palindrome (332153351233).

The spelling of 131031221102 in words is "one hundred thirty-one billion, thirty-one million, two hundred twenty-one thousand, one hundred two".