123426502027 has 4 divisors (see below), whose sum is σ = 125164903536. Its totient is φ = 121688100520.

The previous prime is 123426501971. The next prime is 123426502039. The reversal of 123426502027 is 720205624321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123426502027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123426501983 and 123426502001.

It is not an unprimeable number, because it can be changed into a prime (123426502057) 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, 869200648 + ... + 869200789.

It is an arithmetic number, because the mean of its divisors is an integer number (31291225884).

Almost surely, 2^123426502027 is an apocalyptic number.

123426502027 is a deficient number, since it is larger than the sum of its proper divisors (1738401509).

123426502027 is an equidigital number, since it uses as much as digits as its factorization.

123426502027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738401508.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 123426502027 in words is "one hundred twenty-three billion, four hundred twenty-six million, five hundred two thousand, twenty-seven".