320213311221123 has 16 divisors (see below), whose sum is σ = 474390425001600. Its totient is φ = 213475390377480.

The previous prime is 320213311221007. The next prime is 320213311221161. The reversal of 320213311221123 is 321122113312023.

320213311221123 is a `hidden beast` number, since 3 + 2 + 0 + 2 + 1 + 3 + 311 + 221 + 123 = 666.

It is not a de Polignac number, because 320213311221123 - 2⁸ = 320213311220867 is a prime.

It is a super-2 number, since 2×320213311221123² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (320213311241123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45646228 + ... + 52191998.

It is an arithmetic number, because the mean of its divisors is an integer number (29649401562600).

Almost surely, 2^{320213311221123} is an apocalyptic number.

320213311221123 is a deficient number, since it is larger than the sum of its proper divisors (154177113780477).

320213311221123 is a wasteful number, since it uses less digits than its factorization.

320213311221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8357599 (or 8357593 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 320213311221123 its reverse (321122113312023), we get a palindrome (641335424533146).

The spelling of 320213311221123 in words is "three hundred twenty trillion, two hundred thirteen billion, three hundred eleven million, two hundred twenty-one thousand, one hundred twenty-three".