220231312069 has 2 divisors, whose sum is σ = 220231312070. Its totient is φ = 220231312068.

The previous prime is 220231312039. The next prime is 220231312111. The reversal of 220231312069 is 960213132022.

220231312069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210378168900 + 9853143169 = 458670^2 + 99263^2 .

It is a cyclic number.

It is not a de Polignac number, because 220231312069 - 2⁷ = 220231311941 is a prime.

It is a super-2 number, since 2×220231312069² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220231312069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220231312039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110115656034 + 110115656035.

It is an arithmetic number, because the mean of its divisors is an integer number (110115656035).

Almost surely, 2^220231312069 is an apocalyptic number.

It is an amenable number.

220231312069 is a deficient number, since it is larger than the sum of its proper divisors (1).

220231312069 is an equidigital number, since it uses as much as digits as its factorization.

220231312069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 220231312069 in words is "two hundred twenty billion, two hundred thirty-one million, three hundred twelve thousand, sixty-nine".