163304306121 has 32 divisors (see below), whose sum is σ = 239233913856. Its totient is φ = 98264520000.

The previous prime is 163304306117. The next prime is 163304306147. The reversal of 163304306121 is 121603403361.

163304306121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163304306121 - 2² = 163304306117 is a prime.

It is a super-2 number, since 2×163304306121² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163304306161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10660950 + ... + 10676256.

It is an arithmetic number, because the mean of its divisors is an integer number (7476059808).

Almost surely, 2^163304306121 is an apocalyptic number.

163304306121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163304306121 is a deficient number, since it is larger than the sum of its proper divisors (75929607735).

163304306121 is a wasteful number, since it uses less digits than its factorization.

163304306121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17613.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 163304306121 its reverse (121603403361), we get a palindrome (284907709482).

The spelling of 163304306121 in words is "one hundred sixty-three billion, three hundred four million, three hundred six thousand, one hundred twenty-one".