11723471147 has 2 divisors, whose sum is σ = 11723471148. Its totient is φ = 11723471146.

The previous prime is 11723471131. The next prime is 11723471153. The reversal of 11723471147 is 74117432711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11723471147 - 2⁴ = 11723471131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11723471147.

It is not a weakly prime, because it can be changed into another prime (11723471107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861735573 + 5861735574.

It is an arithmetic number, because the mean of its divisors is an integer number (5861735574).

Almost surely, 2^11723471147 is an apocalyptic number.

11723471147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11723471147 is an equidigital number, since it uses as much as digits as its factorization.

11723471147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 38.

The spelling of 11723471147 in words is "eleven billion, seven hundred twenty-three million, four hundred seventy-one thousand, one hundred forty-seven".