123150412 has 72 divisors (see below), whose sum is σ = 273609728. Its totient is φ = 47472480.

The previous prime is 123150403. The next prime is 123150463. The reversal of 123150412 is 214051321.

It is a self number, because there is not a number n which added to its sum of digits gives 123150412.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552133 + ... + 552355.

Almost surely, 2^123150412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123150412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136804864).

123150412 is an abundant number, since it is smaller than the sum of its proper divisors (150459316).

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

123150412 is a wasteful number, since it uses less digits than its factorization.

123150412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 123150412 is about 11097.3155312445. The cubic root of 123150412 is about 497.5216182116.

Subtracting 123150412 from its reverse (214051321), we obtain a palindrome (90900909).

The spelling of 123150412 in words is "one hundred twenty-three million, one hundred fifty thousand, four hundred twelve".