12303131220211 has 6 divisors (see below), whose sum is σ = 13322325522660. Its totient is φ = 11356736510808.

The previous prime is 12303131220173. The next prime is 12303131220239. The reversal of 12303131220211 is 11202213130321.

It is not a de Polignac number, because 12303131220211 - 2¹¹ = 12303131218163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12303131220011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36399796341 + ... + 36399796678.

It is an arithmetic number, because the mean of its divisors is an integer number (2220387587110).

Almost surely, 2^{12303131220211} is an apocalyptic number.

12303131220211 is a deficient number, since it is larger than the sum of its proper divisors (1019194302449).

12303131220211 is an equidigital number, since it uses as much as digits as its factorization.

12303131220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72799593045 (or 72799593032 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12303131220211 its reverse (11202213130321), we get a palindrome (23505344350532).

The spelling of 12303131220211 in words is "twelve trillion, three hundred three billion, one hundred thirty-one million, two hundred twenty thousand, two hundred eleven".