71497343111 has 2 divisors, whose sum is σ = 71497343112. Its totient is φ = 71497343110.

The previous prime is 71497343089. The next prime is 71497343153. The reversal of 71497343111 is 11134379417.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71497343111 - 2¹⁰ = 71497342087 is a prime.

It is a super-2 number, since 2×71497343111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71497343171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35748671555 + 35748671556.

It is an arithmetic number, because the mean of its divisors is an integer number (35748671556).

Almost surely, 2^71497343111 is an apocalyptic number.

71497343111 is a deficient number, since it is larger than the sum of its proper divisors (1).

71497343111 is an equidigital number, since it uses as much as digits as its factorization.

71497343111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 41.

The spelling of 71497343111 in words is "seventy-one billion, four hundred ninety-seven million, three hundred forty-three thousand, one hundred eleven".