3111401309 has 2 divisors, whose sum is σ = 3111401310. Its totient is φ = 3111401308.

The previous prime is 3111401257. The next prime is 3111401347. The reversal of 3111401309 is 9031041113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1621672900 + 1489728409 = 40270^2 + 38597^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111401309 - 2⁸ = 3111401053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111401369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555700654 + 1555700655.

It is an arithmetic number, because the mean of its divisors is an integer number (1555700655).

Almost surely, 2^3111401309 is an apocalyptic number.

It is an amenable number.

3111401309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111401309 is an equidigital number, since it uses as much as digits as its factorization.

3111401309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 3111401309 is about 55779.9364377551. The cubic root of 3111401309 is about 1459.8851021422.

The spelling of 3111401309 in words is "three billion, one hundred eleven million, four hundred one thousand, three hundred nine".