1011023312003 has 4 divisors (see below), whose sum is σ = 1024872946488. Its totient is φ = 997173677520.

The previous prime is 1011023311999. The next prime is 1011023312009. The reversal of 1011023312003 is 3002133201101.

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

It is a cyclic number.

It is not a de Polignac number, because 1011023312003 - 2² = 1011023311999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011023312009) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 6924817133 + ... + 6924817278.

It is an arithmetic number, because the mean of its divisors is an integer number (256218236622).

Almost surely, 2^{1011023312003} is an apocalyptic number.

1011023312003 is a deficient number, since it is larger than the sum of its proper divisors (13849634485).

1011023312003 is an equidigital number, since it uses as much as digits as its factorization.

1011023312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13849634484.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1011023312003 its reverse (3002133201101), we get a palindrome (4013156513104).

The spelling of 1011023312003 in words is "one trillion, eleven billion, twenty-three million, three hundred twelve thousand, three".