201103142209 has 2 divisors, whose sum is σ = 201103142210. Its totient is φ = 201103142208.

The previous prime is 201103142179. The next prime is 201103142323. The reversal of 201103142209 is 902241301102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155450409984 + 45652732225 = 394272^2 + 213665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201103142209 is a prime.

It is not a weakly prime, because it can be changed into another prime (201103142609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100551571104 + 100551571105.

It is an arithmetic number, because the mean of its divisors is an integer number (100551571105).

Almost surely, 2^201103142209 is an apocalyptic number.

It is an amenable number.

201103142209 is a deficient number, since it is larger than the sum of its proper divisors (1).

201103142209 is an equidigital number, since it uses as much as digits as its factorization.

201103142209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 201103142209 in words is "two hundred one billion, one hundred three million, one hundred forty-two thousand, two hundred nine".