220231300109 has 2 divisors, whose sum is σ = 220231300110. Its totient is φ = 220231300108.

The previous prime is 220231300061. The next prime is 220231300139. The reversal of 220231300109 is 901003132022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205591510084 + 14639790025 = 453422^2 + 120995^2 .

It is a cyclic number.

It is not a de Polignac number, because 220231300109 - 2³⁶ = 151511823373 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220231300139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110115650054 + 110115650055.

It is an arithmetic number, because the mean of its divisors is an integer number (110115650055).

Almost surely, 2^220231300109 is an apocalyptic number.

It is an amenable number.

220231300109 is a deficient number, since it is larger than the sum of its proper divisors (1).

220231300109 is an equidigital number, since it uses as much as digits as its factorization.

220231300109 is an evil number, because the sum of its binary digits is even.

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

The spelling of 220231300109 in words is "two hundred twenty billion, two hundred thirty-one million, three hundred thousand, one hundred nine".