11403247385 has 16 divisors (see below), whose sum is σ = 14755426560. Its totient is φ = 8431666560.

The previous prime is 11403247381. The next prime is 11403247391. The reversal of 11403247385 is 58374230411.

It is not a de Polignac number, because 11403247385 - 2² = 11403247381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11403247381) 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, 1459937 + ... + 1467726.

It is an arithmetic number, because the mean of its divisors is an integer number (922214160).

Almost surely, 2^11403247385 is an apocalyptic number.

It is an amenable number.

11403247385 is a deficient number, since it is larger than the sum of its proper divisors (3352179175).

11403247385 is a wasteful number, since it uses less digits than its factorization.

11403247385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927728.

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 11403247385 its reverse (58374230411), we get a palindrome (69777477796).

The spelling of 11403247385 in words is "eleven billion, four hundred three million, two hundred forty-seven thousand, three hundred eighty-five".