112161720533 has 2 divisors, whose sum is σ = 112161720534. Its totient is φ = 112161720532.

The previous prime is 112161720511. The next prime is 112161720547. The reversal of 112161720533 is 335027161211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57820049764 + 54341670769 = 240458^2 + 233113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112161720533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112161720533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112161720733) 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, 56080860266 + 56080860267.

It is an arithmetic number, because the mean of its divisors is an integer number (56080860267).

Almost surely, 2^112161720533 is an apocalyptic number.

It is an amenable number.

112161720533 is a deficient number, since it is larger than the sum of its proper divisors (1).

112161720533 is an equidigital number, since it uses as much as digits as its factorization.

112161720533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

Adding to 112161720533 its reverse (335027161211), we get a palindrome (447188881744).

The spelling of 112161720533 in words is "one hundred twelve billion, one hundred sixty-one million, seven hundred twenty thousand, five hundred thirty-three".