131020321003 has 8 divisors (see below), whose sum is σ = 153925971696. Its totient is φ = 109947122400.

The previous prime is 131020320989. The next prime is 131020321043. The reversal of 131020321003 is 300123020131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131020321003 - 2²⁵ = 130986766571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131020321043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458112868 + ... + 458113153.

It is an arithmetic number, because the mean of its divisors is an integer number (19240746462).

Almost surely, 2^131020321003 is an apocalyptic number.

131020321003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131020321003 is a deficient number, since it is larger than the sum of its proper divisors (22905650693).

131020321003 is a wasteful number, since it uses less digits than its factorization.

131020321003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916226045.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 131020321003 its reverse (300123020131), we get a palindrome (431143341134).

The spelling of 131020321003 in words is "one hundred thirty-one billion, twenty million, three hundred twenty-one thousand, three".