11148123447 has 16 divisors (see below), whose sum is σ = 16518221280. Its totient is φ = 7430965056.

The previous prime is 11148123431. The next prime is 11148123461. The reversal of 11148123447 is 74432184111.

11148123447 is a `hidden beast` number, since 1 + 114 + 81 + 23 + 447 = 666.

It is not a de Polignac number, because 11148123447 - 2⁴ = 11148123431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11148123407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177333 + ... + 231825.

It is an arithmetic number, because the mean of its divisors is an integer number (1032388830).

Almost surely, 2^11148123447 is an apocalyptic number.

11148123447 is a deficient number, since it is larger than the sum of its proper divisors (5370097833).

11148123447 is an equidigital number, since it uses as much as digits as its factorization.

11148123447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62079 (or 62073 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The spelling of 11148123447 in words is "eleven billion, one hundred forty-eight million, one hundred twenty-three thousand, four hundred forty-seven".