1309112201 has 2 divisors, whose sum is σ = 1309112202. Its totient is φ = 1309112200.

The previous prime is 1309112177. The next prime is 1309112209. The reversal of 1309112201 is 1022119031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1305015625 + 4096576 = 36125^2 + 2024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1309112201 - 2¹⁴ = 1309095817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1309112209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654556100 + 654556101.

It is an arithmetic number, because the mean of its divisors is an integer number (654556101).

Almost surely, 2^1309112201 is an apocalyptic number.

It is an amenable number.

1309112201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309112201 is an equidigital number, since it uses as much as digits as its factorization.

1309112201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1309112201 is about 36181.6555867749. The cubic root of 1309112201 is about 1093.9369459563.

The spelling of 1309112201 in words is "one billion, three hundred nine million, one hundred twelve thousand, two hundred one".