1800456011 has 2 divisors, whose sum is σ = 1800456012. Its totient is φ = 1800456010.

The previous prime is 1800455963. The next prime is 1800456023. The reversal of 1800456011 is 1106540081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1800456011 - 2¹⁸ = 1800193867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1800456041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900228005 + 900228006.

It is an arithmetic number, because the mean of its divisors is an integer number (900228006).

Almost surely, 2^1800456011 is an apocalyptic number.

1800456011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1800456011 is an equidigital number, since it uses as much as digits as its factorization.

1800456011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1800456011 is about 42431.7806720387. The cubic root of 1800456011 is about 1216.5431145528.

Adding to 1800456011 its reverse (1106540081), we get a palindrome (2906996092).

The spelling of 1800456011 in words is "one billion, eight hundred million, four hundred fifty-six thousand, eleven".