123243034 has 4 divisors (see below), whose sum is σ = 184864554. Its totient is φ = 61621516.

The previous prime is 123243023. The next prime is 123243049. The reversal of 123243034 is 430342321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 93026025 + 30217009 = 9645^2 + 5497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123242996 and 123243014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30810757 + ... + 30810760.

Almost surely, 2^123243034 is an apocalyptic number.

123243034 is a deficient number, since it is larger than the sum of its proper divisors (61621520).

123243034 is an equidigital number, since it uses as much as digits as its factorization.

123243034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61621519.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 123243034 is about 11101.4879182928. The cubic root of 123243034 is about 497.6463163990.

Adding to 123243034 its reverse (430342321), we get a palindrome (553585355).

The spelling of 123243034 in words is "one hundred twenty-three million, two hundred forty-three thousand, thirty-four".