131102001003221 has 16 divisors (see below), whose sum is σ = 138095602444800. Its totient is φ = 124117754972400.

The previous prime is 131102001003217. The next prime is 131102001003227. The reversal of 131102001003221 is 122300100201131.

It is not a de Polignac number, because 131102001003221 - 2² = 131102001003217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131102001003221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102001003227) 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, 1059510926 + ... + 1059634656.

It is an arithmetic number, because the mean of its divisors is an integer number (8630975152800).

Almost surely, 2^{131102001003221} is an apocalyptic number.

It is an amenable number.

131102001003221 is a deficient number, since it is larger than the sum of its proper divisors (6993601441579).

131102001003221 is a wasteful number, since it uses less digits than its factorization.

131102001003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161080.

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

Adding to 131102001003221 its reverse (122300100201131), we get a palindrome (253402101204352).

The spelling of 131102001003221 in words is "one hundred thirty-one trillion, one hundred two billion, one million, three thousand, two hundred twenty-one".