1126100000009 has 2 divisors, whose sum is σ = 1126100000010. Its totient is φ = 1126100000008.

The previous prime is 1126099999979. The next prime is 1126100000033. The reversal of 1126100000009 is 9000000016211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 878713135609 + 247386864400 = 937397^2 + 497380^2 .

It is an emirp because it is prime and its reverse (9000000016211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1126100000009 - 2¹² = 1126099995913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1126100000059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563050000004 + 563050000005.

It is an arithmetic number, because the mean of its divisors is an integer number (563050000005).

Almost surely, 2^{1126100000009} is an apocalyptic number.

It is an amenable number.

1126100000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126100000009 is an equidigital number, since it uses as much as digits as its factorization.

1126100000009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 1126100000009 in words is "one trillion, one hundred twenty-six billion, one hundred million, nine", and thus it is an aban number.