123456543210000 has 6075 divisors, whose sum is σ = 614366835605523. Its totient is φ = 23039976960000.

The previous prime is 123456543209977. The next prime is 123456543210059. The reversal of 123456543210000 is 12345654321.

The square root of 123456543210000 is 11111100.

It is a perfect power (a square), and thus also a powerful number.

123456543210000 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 5 + 6 + 543 + 2 + 100 + 0 + 0 = 666.

It can be written as a sum of positive squares in 22 ways, for example, as 117613764720144 + 5842778489856 = 10844988^2 + 2417184^2 .

It is a super-2 number, since 2×123456543210000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 1214 ways as a sum of consecutive naturals, for example, 3336663329982 + ... + 3336663330018.

Almost surely, 2^{123456543210000} is an apocalyptic number.

123456543210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123456543210000 is the 11111100-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123456543210000

123456543210000 is an abundant number, since it is smaller than the sum of its proper divisors (490910292395523).

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

123456543210000 is a wasteful number, since it uses less digits than its factorization.

123456543210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

123456543210000 divided by its sum of digits (36) gives a square (3429348422500 = 1851850²).

Adding to 123456543210000 its reverse (12345654321), we get a palindrome (123468888864321).

123456543210000 divided by its reverse (12345654321) gives a 4-th power (10000 = 10⁴).

The spelling of 123456543210000 in words is "one hundred twenty-three trillion, four hundred fifty-six billion, five hundred forty-three million, two hundred ten thousand".