1161111059 has 2 divisors, whose sum is σ = 1161111060. Its totient is φ = 1161111058.

The previous prime is 1161111053. The next prime is 1161111113. The reversal of 1161111059 is 9501111611.

It is a weak prime.

It is an emirp because it is prime and its reverse (9501111611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161111059 - 2¹² = 1161106963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161111053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580555529 + 580555530.

It is an arithmetic number, because the mean of its divisors is an integer number (580555530).

Almost surely, 2^1161111059 is an apocalyptic number.

1161111059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161111059 is an equidigital number, since it uses as much as digits as its factorization.

1161111059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 26.

The square root of 1161111059 is about 34075.0797357835. The cubic root of 1161111059 is about 1051.0529298714.

The spelling of 1161111059 in words is "one billion, one hundred sixty-one million, one hundred eleven thousand, fifty-nine".