131102113221 has 16 divisors (see below), whose sum is σ = 205650374400. Its totient is φ = 82260149184.

The previous prime is 131102113213. The next prime is 131102113277. The reversal of 131102113221 is 122311201131.

131102113221 is a `hidden beast` number, since 131 + 1 + 0 + 211 + 322 + 1 = 666.

It is not a de Polignac number, because 131102113221 - 2³ = 131102113213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131102113194 and 131102113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102113721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142812301 + ... + 142813218.

It is an arithmetic number, because the mean of its divisors is an integer number (12853148400).

Almost surely, 2^131102113221 is an apocalyptic number.

It is an amenable number.

131102113221 is a deficient number, since it is larger than the sum of its proper divisors (74548261179).

131102113221 is a wasteful number, since it uses less digits than its factorization.

131102113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285625545 (or 285625539 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 131102113221 its reverse (122311201131), we get a palindrome (253413314352).

The spelling of 131102113221 in words is "one hundred thirty-one billion, one hundred two million, one hundred thirteen thousand, two hundred twenty-one".