71181885043 has 2 divisors, whose sum is σ = 71181885044. Its totient is φ = 71181885042.

The previous prime is 71181885013. The next prime is 71181885083. The reversal of 71181885043 is 34058818117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71181885043 - 2²¹ = 71179787891 is a prime.

It is a super-2 number, since 2×71181885043² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71181884984 and 71181885002.

It is not a weakly prime, because it can be changed into another prime (71181885013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35590942521 + 35590942522.

It is an arithmetic number, because the mean of its divisors is an integer number (35590942522).

Almost surely, 2^71181885043 is an apocalyptic number.

71181885043 is a deficient number, since it is larger than the sum of its proper divisors (1).

71181885043 is an equidigital number, since it uses as much as digits as its factorization.

71181885043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 46.

The spelling of 71181885043 in words is "seventy-one billion, one hundred eighty-one million, eight hundred eighty-five thousand, forty-three".