1018199101 has 2 divisors, whose sum is σ = 1018199102. Its totient is φ = 1018199100.

The previous prime is 1018199081. The next prime is 1018199111. The reversal of 1018199101 is 1019918101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527620900 + 490578201 = 22970^2 + 22149^2 .

It is a cyclic number.

It is not a de Polignac number, because 1018199101 - 2⁵ = 1018199069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1018199111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509099550 + 509099551.

It is an arithmetic number, because the mean of its divisors is an integer number (509099551).

Almost surely, 2^1018199101 is an apocalyptic number.

It is an amenable number.

1018199101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018199101 is an equidigital number, since it uses as much as digits as its factorization.

1018199101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 31.

The square root of 1018199101 is about 31909.2322220388. The cubic root of 1018199101 is about 1006.0299338152.

The spelling of 1018199101 in words is "one billion, eighteen million, one hundred ninety-nine thousand, one hundred one".