123426436307 has 4 divisors (see below), whose sum is σ = 123528190560. Its totient is φ = 123324682056.

The previous prime is 123426436303. The next prime is 123426436333. The reversal of 123426436307 is 703634624321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703634624321 = 149 ⋅4722380029.

It is a cyclic number.

It is not a de Polignac number, because 123426436307 - 2² = 123426436303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123426436303) 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, 50875307 + ... + 50877732.

It is an arithmetic number, because the mean of its divisors is an integer number (30882047640).

Almost surely, 2^123426436307 is an apocalyptic number.

123426436307 is a deficient number, since it is larger than the sum of its proper divisors (101754253).

123426436307 is a wasteful number, since it uses less digits than its factorization.

123426436307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101754252.

The product of its (nonzero) digits is 435456, while the sum is 41.

The spelling of 123426436307 in words is "one hundred twenty-three billion, four hundred twenty-six million, four hundred thirty-six thousand, three hundred seven".