123257180928 has 216 divisors, whose sum is σ = 385392152880. Its totient is φ = 34866585600.

The previous prime is 123257180927. The next prime is 123257180929. The reversal of 123257180928 is 829081752321.

It is an interprime number because it is at equal distance from previous prime (123257180927) and next prime (123257180929).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (123257180923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3784618 + ... + 3817046.

It is an arithmetic number, because the mean of its divisors is an integer number (1784222930).

Almost surely, 2^123257180928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123257180928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192696076440).

123257180928 is an abundant number, since it is smaller than the sum of its proper divisors (262134971952).

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

123257180928 is a wasteful number, since it uses less digits than its factorization.

123257180928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32563 (or 32542 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 123257180928 in words is "one hundred twenty-three billion, two hundred fifty-seven million, one hundred eighty thousand, nine hundred twenty-eight".