131321001003220 has 24 divisors (see below), whose sum is σ = 315170402408064. Its totient is φ = 45024343201056.

The previous prime is 131321001003197. The next prime is 131321001003271. The reversal of 131321001003220 is 22300100123131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469003574872 + ... + 469003575151.

It is an arithmetic number, because the mean of its divisors is an integer number (13132100100336).

Almost surely, 2^{131321001003220} is an apocalyptic number.

131321001003220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131321001003220 is an abundant number, since it is smaller than the sum of its proper divisors (183849401404844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131321001003220 is a wasteful number, since it uses less digits than its factorization.

131321001003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938007150039 (or 938007150037 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131321001003220 its reverse (22300100123131), we get a palindrome (153621101126351).

The spelling of 131321001003220 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, one million, three thousand, two hundred twenty".