163612024241321 has 4 divisors (see below), whose sum is σ = 168889831474944. Its totient is φ = 158334217007700.

The previous prime is 163612024241317. The next prime is 163612024241333. The reversal of 163612024241321 is 123142420216361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163612024241321 - 2² = 163612024241317 is a prime.

It is a super-2 number, since 2×163612024241321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163612024241311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2638903616765 + ... + 2638903616826.

It is an arithmetic number, because the mean of its divisors is an integer number (42222457868736).

Almost surely, 2^{163612024241321} is an apocalyptic number.

It is an amenable number.

163612024241321 is a deficient number, since it is larger than the sum of its proper divisors (5277807233623).

163612024241321 is an equidigital number, since it uses as much as digits as its factorization.

163612024241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277807233622.

The product of its (nonzero) digits is 82944, while the sum is 38.

Adding to 163612024241321 its reverse (123142420216361), we get a palindrome (286754444457682).

The spelling of 163612024241321 in words is "one hundred sixty-three trillion, six hundred twelve billion, twenty-four million, two hundred forty-one thousand, three hundred twenty-one".