101020032209 has 2 divisors, whose sum is σ = 101020032210. Its totient is φ = 101020032208.

The previous prime is 101020032187. The next prime is 101020032241. The reversal of 101020032209 is 902230020101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62827929025 + 38192103184 = 250655^2 + 195428^2 .

It is a cyclic number.

It is not a de Polignac number, because 101020032209 - 2³² = 96725064913 is a prime.

It is not a weakly prime, because it can be changed into another prime (101020032299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510016104 + 50510016105.

It is an arithmetic number, because the mean of its divisors is an integer number (50510016105).

Almost surely, 2^101020032209 is an apocalyptic number.

It is an amenable number.

101020032209 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020032209 is an equidigital number, since it uses as much as digits as its factorization.

101020032209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 101020032209 in words is "one hundred one billion, twenty million, thirty-two thousand, two hundred nine".