1234011177809 has 2 divisors, whose sum is σ = 1234011177810. Its totient is φ = 1234011177808.

The previous prime is 1234011177739. The next prime is 1234011177811. The reversal of 1234011177809 is 9087711104321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 889160360209 + 344850817600 = 942953^2 + 587240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234011177809 - 2⁴⁰ = 134499550033 is a prime.

Together with 1234011177811, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1234011177809.

It is not a weakly prime, because it can be changed into another prime (1234011179809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617005588904 + 617005588905.

It is an arithmetic number, because the mean of its divisors is an integer number (617005588905).

Almost surely, 2^{1234011177809} is an apocalyptic number.

It is an amenable number.

1234011177809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234011177809 is an equidigital number, since it uses as much as digits as its factorization.

1234011177809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 1234011177809 in words is "one trillion, two hundred thirty-four billion, eleven million, one hundred seventy-seven thousand, eight hundred nine".