11371647913 has 4 divisors (see below), whose sum is σ = 11371863888. Its totient is φ = 11371431940.

The previous prime is 11371647907. The next prime is 11371647919. The reversal of 11371647913 is 31974617311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11371647907) and next prime (11371647919).

It is a cyclic number.

It is not a de Polignac number, because 11371647913 - 2²¹ = 11369550761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11371647913.

It is not an unprimeable number, because it can be changed into a prime (11371647919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28470 + ... + 153472.

It is an arithmetic number, because the mean of its divisors is an integer number (2842965972).

Almost surely, 2^11371647913 is an apocalyptic number.

It is an amenable number.

11371647913 is a deficient number, since it is larger than the sum of its proper divisors (215975).

11371647913 is an equidigital number, since it uses as much as digits as its factorization.

11371647913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215974.

The product of its digits is 95256, while the sum is 43.

The spelling of 11371647913 in words is "eleven billion, three hundred seventy-one million, six hundred forty-seven thousand, nine hundred thirteen".