123291035306 has 16 divisors (see below), whose sum is σ = 185139437184. Its totient is φ = 61577923344.

The previous prime is 123291035281. The next prime is 123291035311. The reversal of 123291035306 is 603530192321.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10764875 + ... + 10776321.

It is an arithmetic number, because the mean of its divisors is an integer number (11571214824).

Almost surely, 2^123291035306 is an apocalyptic number.

123291035306 is a deficient number, since it is larger than the sum of its proper divisors (61848401878).

123291035306 is a wasteful number, since it uses less digits than its factorization.

123291035306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16885.

The product of its (nonzero) digits is 29160, while the sum is 35.

The spelling of 123291035306 in words is "one hundred twenty-three billion, two hundred ninety-one million, thirty-five thousand, three hundred six".