126387500123 has 8 divisors (see below), whose sum is σ = 136136887296. Its totient is φ = 116992636200.

The previous prime is 126387500081. The next prime is 126387500137. The reversal of 126387500123 is 321005783621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126387500123 - 2¹⁸ = 126387237979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126387500153) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 88630073 + ... + 88631498.

It is an arithmetic number, because the mean of its divisors is an integer number (17017110912).

Almost surely, 2^126387500123 is an apocalyptic number.

126387500123 is a deficient number, since it is larger than the sum of its proper divisors (9749387173).

126387500123 is a wasteful number, since it uses less digits than its factorization.

126387500123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177261625.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 126387500123 in words is "one hundred twenty-six billion, three hundred eighty-seven million, five hundred thousand, one hundred twenty-three".