131032031400221 has 16 divisors (see below), whose sum is σ = 151076941392000. Its totient is φ = 111318644279808.

The previous prime is 131032031400191. The next prime is 131032031400223. The reversal of 131032031400221 is 122004130230131.

It is not a de Polignac number, because 131032031400221 - 2⁶ = 131032031400157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131032031400223) 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, 204722705 + ... + 205361753.

It is an arithmetic number, because the mean of its divisors is an integer number (9442308837000).

Almost surely, 2^{131032031400221} is an apocalyptic number.

It is an amenable number.

131032031400221 is a deficient number, since it is larger than the sum of its proper divisors (20044909991779).

131032031400221 is a wasteful number, since it uses less digits than its factorization.

131032031400221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898388.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131032031400221 its reverse (122004130230131), we get a palindrome (253036161630352).

The spelling of 131032031400221 in words is "one hundred thirty-one trillion, thirty-two billion, thirty-one million, four hundred thousand, two hundred twenty-one".