11455128443 has 12 divisors (see below), whose sum is σ = 13253870280. Its totient is φ = 9865658880.

The previous prime is 11455128409. The next prime is 11455128469. The reversal of 11455128443 is 34482155411.

It is not a de Polignac number, because 11455128443 - 2¹⁴ = 11455112059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11455128397 and 11455128406.

It is not an unprimeable number, because it can be changed into a prime (11455128473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2489030 + ... + 2493627.

It is an arithmetic number, because the mean of its divisors is an integer number (1104489190).

Almost surely, 2^11455128443 is an apocalyptic number.

11455128443 is a deficient number, since it is larger than the sum of its proper divisors (1798741837).

11455128443 is a wasteful number, since it uses less digits than its factorization.

11455128443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982698 (or 4982687 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The spelling of 11455128443 in words is "eleven billion, four hundred fifty-five million, one hundred twenty-eight thousand, four hundred forty-three".