220321112131 has 2 divisors, whose sum is σ = 220321112132. Its totient is φ = 220321112130.

The previous prime is 220321112129. The next prime is 220321112149. The reversal of 220321112131 is 131211123022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220321112131 - 2¹ = 220321112129 is a prime.

It is a super-2 number, since 2×220321112131² (a number of 23 digits) contains 22 as substring.

Together with 220321112129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 220321112099 and 220321112108.

It is not a weakly prime, because it can be changed into another prime (220321116131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110160556065 + 110160556066.

It is an arithmetic number, because the mean of its divisors is an integer number (110160556066).

Almost surely, 2^220321112131 is an apocalyptic number.

220321112131 is a deficient number, since it is larger than the sum of its proper divisors (1).

220321112131 is an equidigital number, since it uses as much as digits as its factorization.

220321112131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 220321112131 its reverse (131211123022), we get a palindrome (351532235153).

The spelling of 220321112131 in words is "two hundred twenty billion, three hundred twenty-one million, one hundred twelve thousand, one hundred thirty-one".