123245100000 has 864 divisors, whose sum is σ = 488297496960. Its totient is φ = 29232000000.

The previous prime is 123245099983. The next prime is 123245100049. The reversal of 123245100000 is 1542321.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 143 ways as a sum of consecutive naturals, for example, 584099895 + ... + 584100105.

It is an arithmetic number, because the mean of its divisors is an integer number (565159140).

Almost surely, 2^123245100000 is an apocalyptic number.

123245100000 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 123245100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244148748480).

123245100000 is an abundant number, since it is smaller than the sum of its proper divisors (365052396960).

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

123245100000 is a wasteful number, since it uses less digits than its factorization.

123245100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 123245100000 its reverse (1542321), we get a palindrome (123246642321).

The spelling of 123245100000 in words is "one hundred twenty-three billion, two hundred forty-five million, one hundred thousand".