123223222311 has 32 divisors (see below), whose sum is σ = 193109606400. Its totient is φ = 69858760608.

The previous prime is 123223222303. The next prime is 123223222313. The reversal of 123223222311 is 113222322321.

It is not a de Polignac number, because 123223222311 - 2³ = 123223222303 is a prime.

It is a super-2 number, since 2×123223222311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123223222313) 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 31 ways as a sum of consecutive naturals, for example, 340776 + ... + 602141.

It is an arithmetic number, because the mean of its divisors is an integer number (6034675200).

Almost surely, 2^123223222311 is an apocalyptic number.

123223222311 is a deficient number, since it is larger than the sum of its proper divisors (69886384089).

123223222311 is an equidigital number, since it uses as much as digits as its factorization.

123223222311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943068 (or 943054 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 123223222311 its reverse (113222322321), we get a palindrome (236445544632).

The spelling of 123223222311 in words is "one hundred twenty-three billion, two hundred twenty-three million, two hundred twenty-two thousand, three hundred eleven".