123112254 has 16 divisors (see below), whose sum is σ = 246664080. Its totient is φ = 40964160.

The previous prime is 123112247. The next prime is 123112271. The reversal of 123112254 is 452211321.

It is a self number, because there is not a number n which added to its sum of digits gives 123112254.

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, 14617 + ... + 21444.

It is an arithmetic number, because the mean of its divisors is an integer number (15416505).

Almost surely, 2^123112254 is an apocalyptic number.

123112254 is an abundant number, since it is smaller than the sum of its proper divisors (123551826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123112254 is a wasteful number, since it uses less digits than its factorization.

123112254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36635.

The product of its digits is 480, while the sum is 21.

The square root of 123112254 is about 11095.5961534295. The cubic root of 123112254 is about 497.4702274213.

Adding to 123112254 its reverse (452211321), we get a palindrome (575323575).

The spelling of 123112254 in words is "one hundred twenty-three million, one hundred twelve thousand, two hundred fifty-four".