11123457929 has 2 divisors, whose sum is σ = 11123457930. Its totient is φ = 11123457928.

The previous prime is 11123457887. The next prime is 11123457949. The reversal of 11123457929 is 92975432111.

11123457929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9801990025 + 1321467904 = 99005^2 + 36352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11123457929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11123457929.

It is not a weakly prime, because it can be changed into another prime (11123457949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561728964 + 5561728965.

It is an arithmetic number, because the mean of its divisors is an integer number (5561728965).

Almost surely, 2^11123457929 is an apocalyptic number.

It is an amenable number.

11123457929 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123457929 is an equidigital number, since it uses as much as digits as its factorization.

11123457929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 44.

The spelling of 11123457929 in words is "eleven billion, one hundred twenty-three million, four hundred fifty-seven thousand, nine hundred twenty-nine".