131404102240221 has 6 divisors (see below), whose sum is σ = 189805925458110. Its totient is φ = 87602734826808.

The previous prime is 131404102240199. The next prime is 131404102240223. The reversal of 131404102240221 is 122042201404131.

131404102240221 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 0 + 410 + 2 + 24 + 0 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103546702124100 + 27857400116121 = 10175790^2 + 5278011^2 .

It is not a de Polignac number, because 131404102240221 - 2¹⁷ = 131404102109149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131404102240223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7300227902226 + ... + 7300227902243.

It is an arithmetic number, because the mean of its divisors is an integer number (31634320909685).

Almost surely, 2^{131404102240221} is an apocalyptic number.

It is an amenable number.

131404102240221 is a deficient number, since it is larger than the sum of its proper divisors (58401823217889).

131404102240221 is a wasteful number, since it uses less digits than its factorization.

131404102240221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14600455804475 (or 14600455804472 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 131404102240221 its reverse (122042201404131), we get a palindrome (253446303644352).

The spelling of 131404102240221 in words is "one hundred thirty-one trillion, four hundred four billion, one hundred two million, two hundred forty thousand, two hundred twenty-one".