68100123 has 48 divisors (see below), whose sum is σ = 118116096. Its totient is φ = 33981120.

The previous prime is 68100121. The next prime is 68100127. The reversal of 68100123 is 32100186.

It is not a de Polignac number, because 68100123 - 2¹ = 68100121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 68100123.

It is not an unprimeable number, because it can be changed into a prime (68100121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98208 + ... + 98898.

It is an arithmetic number, because the mean of its divisors is an integer number (2460752).

Almost surely, 2^68100123 is an apocalyptic number.

68100123 is a deficient number, since it is larger than the sum of its proper divisors (50015973).

68100123 is a wasteful number, since it uses less digits than its factorization.

68100123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 68100123 is about 8252.2798668004. The cubic root of 68100123 is about 408.3657391839.

The spelling of 68100123 in words is "sixty-eight million, one hundred thousand, one hundred twenty-three".