1101123100009 has 2 divisors, whose sum is σ = 1101123100010. Its totient is φ = 1101123100008.

The previous prime is 1101123099977. The next prime is 1101123100123. The reversal of 1101123100009 is 9000013211011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 553019784409 + 548103315600 = 743653^2 + 740340^2 .

It is an emirp because it is prime and its reverse (9000013211011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101123100009 - 2⁵ = 1101123099977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101123100709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550561550004 + 550561550005.

It is an arithmetic number, because the mean of its divisors is an integer number (550561550005).

Almost surely, 2^{1101123100009} is an apocalyptic number.

It is an amenable number.

1101123100009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101123100009 is an equidigital number, since it uses as much as digits as its factorization.

1101123100009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

The spelling of 1101123100009 in words is "one trillion, one hundred one billion, one hundred twenty-three million, one hundred thousand, nine".