123251455000 has 80 divisors (see below), whose sum is σ = 292434516000. Its totient is φ = 48676368000.

The previous prime is 123251454983. The next prime is 123251455027. The reversal of 123251455000 is 554152321.

It is a self number, because there is not a number n which added to its sum of digits gives 123251455000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 238986 + ... + 551014.

It is an arithmetic number, because the mean of its divisors is an integer number (3655431450).

Almost surely, 2^123251455000 is an apocalyptic number.

123251455000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123251455000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146217258000).

123251455000 is an abundant number, since it is smaller than the sum of its proper divisors (169183061000).

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

123251455000 is an equidigital number, since it uses as much as digits as its factorization.

123251455000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312134 (or 312115 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 123251455000 in words is "one hundred twenty-three billion, two hundred fifty-one million, four hundred fifty-five thousand".