123290508434 has 8 divisors (see below), whose sum is σ = 184940785920. Its totient is φ = 61643579796.

The previous prime is 123290508421. The next prime is 123290508437. The reversal of 123290508434 is 434805092321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123290508391 and 123290508400.

It is not an unprimeable number, because it can be changed into a prime (123290508437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743054 + ... + 893705.

It is an arithmetic number, because the mean of its divisors is an integer number (23117598240).

Almost surely, 2^123290508434 is an apocalyptic number.

123290508434 is a deficient number, since it is larger than the sum of its proper divisors (61650277486).

123290508434 is a wasteful number, since it uses less digits than its factorization.

123290508434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674424.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 123290508434 in words is "one hundred twenty-three billion, two hundred ninety million, five hundred eight thousand, four hundred thirty-four".