1101012109 has 2 divisors, whose sum is σ = 1101012110. Its totient is φ = 1101012108.

The previous prime is 1101012103. The next prime is 1101012127. The reversal of 1101012109 is 9012101011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 576144009 + 524868100 = 24003^2 + 22910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101012109 - 2²³ = 1092623501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101012092 and 1101012101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101012103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550506054 + 550506055.

It is an arithmetic number, because the mean of its divisors is an integer number (550506055).

Almost surely, 2^1101012109 is an apocalyptic number.

It is an amenable number.

1101012109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101012109 is an equidigital number, since it uses as much as digits as its factorization.

1101012109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 1101012109 is about 33181.5025126952. The cubic root of 1101012109 is about 1032.5966184034.

The spelling of 1101012109 in words is "one billion, one hundred one million, twelve thousand, one hundred nine".