311241103 has 2 divisors, whose sum is σ = 311241104. Its totient is φ = 311241102.

The previous prime is 311241089. The next prime is 311241113. The reversal of 311241103 is 301142113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311241103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311241113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155620551 + 155620552.

It is an arithmetic number, because the mean of its divisors is an integer number (155620552).

Almost surely, 2^311241103 is an apocalyptic number.

311241103 is a deficient number, since it is larger than the sum of its proper divisors (1).

311241103 is an equidigital number, since it uses as much as digits as its factorization.

311241103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 311241103 is about 17642.0266126089. The cubic root of 311241103 is about 677.6919318419.

Adding to 311241103 its reverse (301142113), we get a palindrome (612383216).

The spelling of 311241103 in words is "three hundred eleven million, two hundred forty-one thousand, one hundred three".