1201141309 has 2 divisors, whose sum is σ = 1201141310. Its totient is φ = 1201141308.

The previous prime is 1201141303. The next prime is 1201141313. The reversal of 1201141309 is 9031411021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 998876025 + 202265284 = 31605^2 + 14222^2 .

It is an emirp because it is prime and its reverse (9031411021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201141309 - 2⁷ = 1201141181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201141309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201141303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600570654 + 600570655.

It is an arithmetic number, because the mean of its divisors is an integer number (600570655).

Almost surely, 2^1201141309 is an apocalyptic number.

It is an amenable number.

1201141309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201141309 is an equidigital number, since it uses as much as digits as its factorization.

1201141309 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 22.

The square root of 1201141309 is about 34657.4856127792. The cubic root of 1201141309 is about 1062.9953573745.

The spelling of 1201141309 in words is "one billion, two hundred one million, one hundred forty-one thousand, three hundred nine".