123268129300 has 18 divisors (see below), whose sum is σ = 267491840798. Its totient is φ = 49307251680.

The previous prime is 123268129297. The next prime is 123268129319. The reversal of 123268129300 is 3921862321.

It can be written as a sum of positive squares in 3 ways, for example, as 6186451716 + 117081677584 = 78654^2 + 342172^2 .

It is a super-2 number, since 2×123268129300² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123268129300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616340547 + ... + 616340746.

Almost surely, 2^123268129300 is an apocalyptic number.

123268129300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123268129300 is an abundant number, since it is smaller than the sum of its proper divisors (144223711498).

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

123268129300 is a wasteful number, since it uses less digits than its factorization.

123268129300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232681307 (or 1232681300 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 123268129300 in words is "one hundred twenty-three billion, two hundred sixty-eight million, one hundred twenty-nine thousand, three hundred".