12667026123 has 6 divisors (see below), whose sum is σ = 18296815524. Its totient is φ = 8444684076.

The previous prime is 12667026121. The next prime is 12667026133. The reversal of 12667026123 is 32162076621.

It is not a de Polignac number, because 12667026123 - 2¹ = 12667026121 is a prime.

It is a super-2 number, since 2×12667026123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12667026121) 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 5 ways as a sum of consecutive naturals, for example, 703723665 + ... + 703723682.

It is an arithmetic number, because the mean of its divisors is an integer number (3049469254).

Almost surely, 2^12667026123 is an apocalyptic number.

12667026123 is a deficient number, since it is larger than the sum of its proper divisors (5629789401).

12667026123 is a wasteful number, since it uses less digits than its factorization.

12667026123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407447353 (or 1407447350 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 12667026123 in words is "twelve billion, six hundred sixty-seven million, twenty-six thousand, one hundred twenty-three".