1123626320009 has 2 divisors, whose sum is σ = 1123626320010. Its totient is φ = 1123626320008.

The previous prime is 1123626319999. The next prime is 1123626320039. The reversal of 1123626320009 is 9000236263211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 886851625984 + 236774694025 = 941728^2 + 486595^2 .

It is an emirp because it is prime and its reverse (9000236263211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123626320009 - 2¹⁶ = 1123626254473 is a prime.

It is a super-2 number, since 2×1123626320009² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123626320039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561813160004 + 561813160005.

It is an arithmetic number, because the mean of its divisors is an integer number (561813160005).

Almost surely, 2^{1123626320009} is an apocalyptic number.

It is an amenable number.

1123626320009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123626320009 is an equidigital number, since it uses as much as digits as its factorization.

1123626320009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 1123626320009 in words is "one trillion, one hundred twenty-three billion, six hundred twenty-six million, three hundred twenty thousand, nine".