123112030 has 16 divisors (see below), whose sum is σ = 225235584. Its totient is φ = 48437280.

The previous prime is 123112019. The next prime is 123112051. The reversal of 123112030 is 30211321.

It is a self number, because there is not a number n which added to its sum of digits gives 123112030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100302 + ... + 101521.

It is an arithmetic number, because the mean of its divisors is an integer number (14077224).

Almost surely, 2^123112030 is an apocalyptic number.

123112030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123112030 is a deficient number, since it is larger than the sum of its proper divisors (102123554).

123112030 is a wasteful number, since it uses less digits than its factorization.

123112030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201891.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 123112030 is about 11095.5860593301. The cubic root of 123112030 is about 497.4699257091.

Adding to 123112030 its reverse (30211321), we get a palindrome (153323351).

It can be divided in two parts, 12311 and 2030, that added together give a palindrome (14341).

The spelling of 123112030 in words is "one hundred twenty-three million, one hundred twelve thousand, thirty".