123354247156 has 24 divisors (see below), whose sum is σ = 247580271680. Its totient is φ = 52679296512.

The previous prime is 123354247129. The next prime is 123354247183. The reversal of 123354247156 is 651742453321.

It is an interprime number because it is at equal distance from previous prime (123354247129) and next prime (123354247183).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7775661 + ... + 7791508.

Almost surely, 2^123354247156 is an apocalyptic number.

It is an amenable number.

123354247156 is an abundant number, since it is smaller than the sum of its proper divisors (124226024524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123354247156 is a wasteful number, since it uses less digits than its factorization.

123354247156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15567463 (or 15567461 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The spelling of 123354247156 in words is "one hundred twenty-three billion, three hundred fifty-four million, two hundred forty-seven thousand, one hundred fifty-six".