220031323131011 has 12 divisors (see below), whose sum is σ = 255957788726640. Its totient is φ = 188596078035120.

The previous prime is 220031323130909. The next prime is 220031323131013. The reversal of 220031323131011 is 110131323130022.

It is not a de Polignac number, because 220031323131011 - 2¹⁸ = 220031322868867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220031323131013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21925295 + ... + 30344376.

It is an arithmetic number, because the mean of its divisors is an integer number (21329815727220).

Almost surely, 2^{220031323131011} is an apocalyptic number.

220031323131011 is a deficient number, since it is larger than the sum of its proper divisors (35926465595629).

220031323131011 is an equidigital number, since it uses as much as digits as its factorization.

220031323131011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52355594 (or 52355587 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 220031323131011 its reverse (110131323130022), we get a palindrome (330162646261033).

The spelling of 220031323131011 in words is "two hundred twenty trillion, thirty-one billion, three hundred twenty-three million, one hundred thirty-one thousand, eleven".