131303301211209 has 4 divisors (see below), whose sum is σ = 175071068281616. Its totient is φ = 87535534140804.

The previous prime is 131303301211183. The next prime is 131303301211253. The reversal of 131303301211209 is 902112103303131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131303301211209 - 2²⁸ = 131303032775753 is a prime.

It is a super-2 number, since 2×131303301211209² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131303301211279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21883883535199 + ... + 21883883535204.

It is an arithmetic number, because the mean of its divisors is an integer number (43767767070404).

Almost surely, 2^{131303301211209} is an apocalyptic number.

It is an amenable number.

131303301211209 is a deficient number, since it is larger than the sum of its proper divisors (43767767070407).

131303301211209 is an equidigital number, since it uses as much as digits as its factorization.

131303301211209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43767767070406.

The product of its (nonzero) digits is 2916, while the sum is 30.

The spelling of 131303301211209 in words is "one hundred thirty-one trillion, three hundred three billion, three hundred one million, two hundred eleven thousand, two hundred nine".