123220310 has 8 divisors (see below), whose sum is σ = 221796576. Its totient is φ = 49288120.

The previous prime is 123220309. The next prime is 123220313. The reversal of 123220310 is 13022321.

It is a happy number.

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

It is a super-2 number, since 2×123220310² = 30366489592992200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123220313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6161006 + ... + 6161025.

It is an arithmetic number, because the mean of its divisors is an integer number (27724572).

Almost surely, 2^123220310 is an apocalyptic number.

123220310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123220310 is a deficient number, since it is larger than the sum of its proper divisors (98576266).

123220310 is a wasteful number, since it uses less digits than its factorization.

123220310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12322038.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 123220310 is about 11100.4644046995. The cubic root of 123220310 is about 497.6157285715.

Adding to 123220310 its reverse (13022321), we get a palindrome (136242631).

The spelling of 123220310 in words is "one hundred twenty-three million, two hundred twenty thousand, three hundred ten".