11071420807 has 2 divisors, whose sum is σ = 11071420808. Its totient is φ = 11071420806.

The previous prime is 11071420771. The next prime is 11071420819. The reversal of 11071420807 is 70802417011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11071420807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11071420847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5535710403 + 5535710404.

It is an arithmetic number, because the mean of its divisors is an integer number (5535710404).

Almost surely, 2^11071420807 is an apocalyptic number.

11071420807 is a deficient number, since it is larger than the sum of its proper divisors (1).

11071420807 is an equidigital number, since it uses as much as digits as its factorization.

11071420807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 31.

Adding to 11071420807 its reverse (70802417011), we get a palindrome (81873837818).

The spelling of 11071420807 in words is "eleven billion, seventy-one million, four hundred twenty thousand, eight hundred seven".