123223102031 has 4 divisors (see below), whose sum is σ = 123517191000. Its totient is φ = 122929013064.

The previous prime is 123223101997. The next prime is 123223102061. The reversal of 123223102031 is 130201322321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123223102031 - 2¹⁴ = 123223085647 is a prime.

It is a super-2 number, since 2×123223102031² (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 = 123223101994 and 123223102012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123223102061) 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 3 ways as a sum of consecutive naturals, for example, 147043856 + ... + 147044693.

It is an arithmetic number, because the mean of its divisors is an integer number (30879297750).

Almost surely, 2^123223102031 is an apocalyptic number.

123223102031 is a deficient number, since it is larger than the sum of its proper divisors (294088969).

123223102031 is an equidigital number, since it uses as much as digits as its factorization.

123223102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294088968.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123223102031 its reverse (130201322321), we get a palindrome (253424424352).

The spelling of 123223102031 in words is "one hundred twenty-three billion, two hundred twenty-three million, one hundred two thousand, thirty-one".