11271623477 has 2 divisors, whose sum is σ = 11271623478. Its totient is φ = 11271623476.

The previous prime is 11271623443. The next prime is 11271623491. The reversal of 11271623477 is 77432617211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6246373156 + 5025250321 = 79034^2 + 70889^2 .

It is a cyclic number.

It is not a de Polignac number, because 11271623477 - 2⁸ = 11271623221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11271629477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5635811738 + 5635811739.

It is an arithmetic number, because the mean of its divisors is an integer number (5635811739).

Almost surely, 2^11271623477 is an apocalyptic number.

It is an amenable number.

11271623477 is a deficient number, since it is larger than the sum of its proper divisors (1).

11271623477 is an equidigital number, since it uses as much as digits as its factorization.

11271623477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 41.

The spelling of 11271623477 in words is "eleven billion, two hundred seventy-one million, six hundred twenty-three thousand, four hundred seventy-seven".