103003211309 has 2 divisors, whose sum is σ = 103003211310. Its totient is φ = 103003211308.

The previous prime is 103003211291. The next prime is 103003211359. The reversal of 103003211309 is 903112300301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66227478409 + 36775732900 = 257347^2 + 191770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103003211309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103003211359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51501605654 + 51501605655.

It is an arithmetic number, because the mean of its divisors is an integer number (51501605655).

Almost surely, 2^103003211309 is an apocalyptic number.

It is an amenable number.

103003211309 is a deficient number, since it is larger than the sum of its proper divisors (1).

103003211309 is an equidigital number, since it uses as much as digits as its factorization.

103003211309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 103003211309 in words is "one hundred three billion, three million, two hundred eleven thousand, three hundred nine".