131021221303 has 8 divisors (see below), whose sum is σ = 150490995200. Its totient is φ = 111739561560.

The previous prime is 131021221283. The next prime is 131021221327. The reversal of 131021221303 is 303122120131.

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 131021221303 - 2³³ = 122431286711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021222303) 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, 47027043 + ... + 47029828.

It is an arithmetic number, because the mean of its divisors is an integer number (18811374400).

Almost surely, 2^131021221303 is an apocalyptic number.

131021221303 is a deficient number, since it is larger than the sum of its proper divisors (19469773897).

131021221303 is an equidigital number, since it uses as much as digits as its factorization.

131021221303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94057077.

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

Adding to 131021221303 its reverse (303122120131), we get a palindrome (434143341434).

The spelling of 131021221303 in words is "one hundred thirty-one billion, twenty-one million, two hundred twenty-one thousand, three hundred three".