123870138224 has 20 divisors (see below), whose sum is σ = 274283877744. Its totient is φ = 53087202048.

The previous prime is 123870138199. The next prime is 123870138247. The reversal of 123870138224 is 422831078321.

It is a super-2 number, since 2×123870138224² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552991577 + ... + 552991800.

Almost surely, 2^123870138224 is an apocalyptic number.

123870138224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123870138224 is an abundant number, since it is smaller than the sum of its proper divisors (150413739520).

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

123870138224 is a wasteful number, since it uses less digits than its factorization.

123870138224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105983392 (or 1105983386 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 123870138224 in words is "one hundred twenty-three billion, eight hundred seventy million, one hundred thirty-eight thousand, two hundred twenty-four".