111241315309 has 2 divisors, whose sum is σ = 111241315310. Its totient is φ = 111241315308.

The previous prime is 111241315303. The next prime is 111241315351. The reversal of 111241315309 is 903513142111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70409030409 + 40832284900 = 265347^2 + 202070^2 .

It is a cyclic number.

It is not a de Polignac number, because 111241315309 - 2³ = 111241315301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111241315301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55620657654 + 55620657655.

It is an arithmetic number, because the mean of its divisors is an integer number (55620657655).

Almost surely, 2^111241315309 is an apocalyptic number.

It is an amenable number.

111241315309 is a deficient number, since it is larger than the sum of its proper divisors (1).

111241315309 is an equidigital number, since it uses as much as digits as its factorization.

111241315309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 111241315309 in words is "one hundred eleven billion, two hundred forty-one million, three hundred fifteen thousand, three hundred nine".