123034842 has 128 divisors (see below), whose sum is σ = 338534400. Its totient is φ = 32332608.

The previous prime is 123034841. The next prime is 123034871. The reversal of 123034842 is 248430321.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (123034841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 265503 + ... + 265965.

It is an arithmetic number, because the mean of its divisors is an integer number (2644800).

Almost surely, 2^123034842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123034842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169267200).

123034842 is an abundant number, since it is smaller than the sum of its proper divisors (215499558).

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

123034842 is a wasteful number, since it uses less digits than its factorization.

123034842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 123034842 is about 11092.1071938564. The cubic root of 123034842 is about 497.3659371267.

The spelling of 123034842 in words is "one hundred twenty-three million, thirty-four thousand, eight hundred forty-two".