123213223124 has 12 divisors (see below), whose sum is σ = 220882241748. Its totient is φ = 60104011200.

The previous prime is 123213223121. The next prime is 123213223127. The reversal of 123213223124 is 421322312321.

It is an interprime number because it is at equal distance from previous prime (123213223121) and next prime (123213223127).

It can be written as a sum of positive squares in 2 ways, for example, as 31446638224 + 91766584900 = 177332^2 + 302930^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123213223093 and 123213223102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123213223121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375649907 + ... + 375650234.

It is an arithmetic number, because the mean of its divisors is an integer number (18406853479).

Almost surely, 2^123213223124 is an apocalyptic number.

It is an amenable number.

123213223124 is a deficient number, since it is larger than the sum of its proper divisors (97669018624).

123213223124 is a wasteful number, since it uses less digits than its factorization.

123213223124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751300186 (or 751300184 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

Adding to 123213223124 its reverse (421322312321), we get a palindrome (544535535445).

The spelling of 123213223124 in words is "one hundred twenty-three billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred twenty-four".