11270205571 has 2 divisors, whose sum is σ = 11270205572. Its totient is φ = 11270205570.

The previous prime is 11270205559. The next prime is 11270205577. The reversal of 11270205571 is 17550207211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11270205571 - 2¹¹ = 11270203523 is a prime.

It is a super-2 number, since 2×11270205571² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11270205577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5635102785 + 5635102786.

It is an arithmetic number, because the mean of its divisors is an integer number (5635102786).

Almost surely, 2^11270205571 is an apocalyptic number.

11270205571 is a deficient number, since it is larger than the sum of its proper divisors (1).

11270205571 is an equidigital number, since it uses as much as digits as its factorization.

11270205571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4900, while the sum is 31.

The spelling of 11270205571 in words is "eleven billion, two hundred seventy million, two hundred five thousand, five hundred seventy-one".