1001123456126 has 4 divisors (see below), whose sum is σ = 1501685184192. Its totient is φ = 500561728062.

The previous prime is 1001123456119. The next prime is 1001123456141. The reversal of 1001123456126 is 6216543211001.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1001123456092 and 1001123456101.

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 as a sum of consecutive naturals, namely, 250280864030 + ... + 250280864033.

It is an arithmetic number, because the mean of its divisors is an integer number (375421296048).

Almost surely, 2^{1001123456126} is an apocalyptic number.

1001123456126 is a deficient number, since it is larger than the sum of its proper divisors (500561728066).

1001123456126 is an equidigital number, since it uses as much as digits as its factorization.

1001123456126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500561728065.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 1001123456126 its reverse (6216543211001), we get a palindrome (7217666667127).

The spelling of 1001123456126 in words is "one trillion, one billion, one hundred twenty-three million, four hundred fifty-six thousand, one hundred twenty-six".