1151511181571 has 2 divisors, whose sum is σ = 1151511181572. Its totient is φ = 1151511181570.

The previous prime is 1151511181523. The next prime is 1151511181591. The reversal of 1151511181571 is 1751811151511.

It is a strong prime.

It is an emirp because it is prime and its reverse (1751811151511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151511181571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1151511181511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575755590785 + 575755590786.

It is an arithmetic number, because the mean of its divisors is an integer number (575755590786).

Almost surely, 2^{1151511181571} is an apocalyptic number.

1151511181571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151511181571 is an equidigital number, since it uses as much as digits as its factorization.

1151511181571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7000, while the sum is 38.

The spelling of 1151511181571 in words is "one trillion, one hundred fifty-one billion, five hundred eleven million, one hundred eighty-one thousand, five hundred seventy-one".