123221020013331 has 16 divisors (see below), whose sum is σ = 164778295638528. Its totient is φ = 81905574644000.

The previous prime is 123221020013321. The next prime is 123221020013387. The reversal of 123221020013331 is 133310020122321.

It is a cyclic number.

It is not a de Polignac number, because 123221020013331 - 2¹¹ = 123221020011283 is a prime.

It is a super-2 number, since 2×123221020013331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123221020013321) 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 in 15 ways as a sum of consecutive naturals, for example, 13338646 + ... + 20600036.

It is an arithmetic number, because the mean of its divisors is an integer number (10298643477408).

Almost surely, 2^{123221020013331} is an apocalyptic number.

123221020013331 is a deficient number, since it is larger than the sum of its proper divisors (41557275625197).

123221020013331 is a wasteful number, since it uses less digits than its factorization.

123221020013331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278042.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123221020013331 its reverse (133310020122321), we get a palindrome (256531040135652).

The spelling of 123221020013331 in words is "one hundred twenty-three trillion, two hundred twenty-one billion, twenty million, thirteen thousand, three hundred thirty-one".