123013223221 has 8 divisors (see below), whose sum is σ = 145121590784. Its totient is φ = 102038618160.

The previous prime is 123013223191. The next prime is 123013223329. The reversal of 123013223221 is 122322310321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123013223221 - 2¹⁹ = 123012698933 is a prime.

It is a super-2 number, since 2×123013223221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123013223192 and 123013223201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013220221) 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 7 ways as a sum of consecutive naturals, for example, 283440390 + ... + 283440823.

It is an arithmetic number, because the mean of its divisors is an integer number (18140198848).

Almost surely, 2^123013223221 is an apocalyptic number.

It is an amenable number.

123013223221 is a deficient number, since it is larger than the sum of its proper divisors (22108367563).

123013223221 is an equidigital number, since it uses as much as digits as its factorization.

123013223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566881251.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123013223221 its reverse (122322310321), we get a palindrome (245335533542).

The spelling of 123013223221 in words is "one hundred twenty-three billion, thirteen million, two hundred twenty-three thousand, two hundred twenty-one".