11423451049 has 2 divisors, whose sum is σ = 11423451050. Its totient is φ = 11423451048.

The previous prime is 11423451001. The next prime is 11423451059. The reversal of 11423451049 is 94015432411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11037603600 + 385847449 = 105060^2 + 19643^2 .

It is an emirp because it is prime and its reverse (94015432411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11423451049 - 2⁹ = 11423450537 is a prime.

It is not a weakly prime, because it can be changed into another prime (11423451059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711725524 + 5711725525.

It is an arithmetic number, because the mean of its divisors is an integer number (5711725525).

Almost surely, 2^11423451049 is an apocalyptic number.

It is an amenable number.

11423451049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11423451049 is an equidigital number, since it uses as much as digits as its factorization.

11423451049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 11423451049 in words is "eleven billion, four hundred twenty-three million, four hundred fifty-one thousand, forty-nine".