1634321011 has 2 divisors, whose sum is σ = 1634321012. Its totient is φ = 1634321010.

The previous prime is 1634320999. The next prime is 1634321021. The reversal of 1634321011 is 1101234361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1634321011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1634321021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817160505 + 817160506.

It is an arithmetic number, because the mean of its divisors is an integer number (817160506).

Almost surely, 2^1634321011 is an apocalyptic number.

1634321011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634321011 is an equidigital number, since it uses as much as digits as its factorization.

1634321011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1634321011 is about 40426.7363387152. The cubic root of 1634321011 is about 1177.9109381696.

Adding to 1634321011 its reverse (1101234361), we get a palindrome (2735555372).

The spelling of 1634321011 in words is "one billion, six hundred thirty-four million, three hundred twenty-one thousand, eleven".