1154331011 has 2 divisors, whose sum is σ = 1154331012. Its totient is φ = 1154331010.

The previous prime is 1154330987. The next prime is 1154331023. The reversal of 1154331011 is 1101334511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1154331011 - 2¹⁰ = 1154329987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1154331071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577165505 + 577165506.

It is an arithmetic number, because the mean of its divisors is an integer number (577165506).

Almost surely, 2^1154331011 is an apocalyptic number.

1154331011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154331011 is an equidigital number, since it uses as much as digits as its factorization.

1154331011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1154331011 is about 33975.4471788084. The cubic root of 1154331011 is about 1049.0031388464.

Adding to 1154331011 its reverse (1101334511), we get a palindrome (2255665522).

The spelling of 1154331011 in words is "one billion, one hundred fifty-four million, three hundred thirty-one thousand, eleven".