123040310 has 16 divisors (see below), whose sum is σ = 222427296. Its totient is φ = 49003968.

The previous prime is 123040297. The next prime is 123040319. The reversal of 123040310 is 13040321.

It is a super-2 number, since 2×123040310² = 30277835769792200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123040319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24074 + ... + 28733.

It is an arithmetic number, because the mean of its divisors is an integer number (13901706).

Almost surely, 2^123040310 is an apocalyptic number.

123040310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123040310 is a deficient number, since it is larger than the sum of its proper divisors (99386986).

123040310 is a wasteful number, since it uses less digits than its factorization.

123040310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53047.

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

The square root of 123040310 is about 11092.3536726882. The cubic root of 123040310 is about 497.3733051119.

Adding to 123040310 its reverse (13040321), we get a palindrome (136080631).

The spelling of 123040310 in words is "one hundred twenty-three million, forty thousand, three hundred ten".