123909034 has 4 divisors (see below), whose sum is σ = 185863554. Its totient is φ = 61954516.

The previous prime is 123909029. The next prime is 123909113. The reversal of 123909034 is 430909321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430909321 = 43 ⋅10021147.

It can be written as a sum of positive squares in only one way, i.e., 123143409 + 765625 = 11097^2 + 875^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123908987 and 123909005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30977257 + ... + 30977260.

Almost surely, 2^123909034 is an apocalyptic number.

123909034 is a deficient number, since it is larger than the sum of its proper divisors (61954520).

123909034 is an equidigital number, since it uses as much as digits as its factorization.

123909034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61954519.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 123909034 is about 11131.4434823162. The cubic root of 123909034 is about 498.5411261809.

The spelling of 123909034 in words is "one hundred twenty-three million, nine hundred nine thousand, thirty-four".