1003111123005 has 32 divisors (see below), whose sum is σ = 1784264284800. Its totient is φ = 534705912576.

The previous prime is 1003111122971. The next prime is 1003111123081. The reversal of 1003111123005 is 5003211113001.

It is not a de Polignac number, because 1003111123005 - 2⁶ = 1003111122941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1737900 + ... + 2241989.

It is an arithmetic number, because the mean of its divisors is an integer number (55758258900).

Almost surely, 2^{1003111123005} is an apocalyptic number.

1003111123005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1003111123005 is a deficient number, since it is larger than the sum of its proper divisors (781153161795).

1003111123005 is a wasteful number, since it uses less digits than its factorization.

1003111123005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981770 (or 3981764 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 1003111123005 its reverse (5003211113001), we get a palindrome (6006322236006).

The spelling of 1003111123005 in words is "one trillion, three billion, one hundred eleven million, one hundred twenty-three thousand, five".