1115241311 has 2 divisors, whose sum is σ = 1115241312. Its totient is φ = 1115241310.

The previous prime is 1115241277. The next prime is 1115241349. The reversal of 1115241311 is 1131425111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115241311 - 2⁶ = 1115241247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115241811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557620655 + 557620656.

It is an arithmetic number, because the mean of its divisors is an integer number (557620656).

Almost surely, 2^1115241311 is an apocalyptic number.

1115241311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115241311 is an equidigital number, since it uses as much as digits as its factorization.

1115241311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 20.

The square root of 1115241311 is about 33395.2288658126. The cubic root of 1115241311 is about 1037.0259309155.

Adding to 1115241311 its reverse (1131425111), we get a palindrome (2246666422).

The spelling of 1115241311 in words is "one billion, one hundred fifteen million, two hundred forty-one thousand, three hundred eleven".