1011323123003 has 4 divisors (see below), whose sum is σ = 1025176864488. Its totient is φ = 997469381520.

The previous prime is 1011323122993. The next prime is 1011323123009. The reversal of 1011323123003 is 3003213231101.

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 1011323123003 - 2¹⁸ = 1011322860859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011323123009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6926870633 + ... + 6926870778.

It is an arithmetic number, because the mean of its divisors is an integer number (256294216122).

Almost surely, 2^{1011323123003} is an apocalyptic number.

1011323123003 is a deficient number, since it is larger than the sum of its proper divisors (13853741485).

1011323123003 is an equidigital number, since it uses as much as digits as its factorization.

1011323123003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13853741484.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1011323123003 its reverse (3003213231101), we get a palindrome (4014536354104).

The spelling of 1011323123003 in words is "one trillion, eleven billion, three hundred twenty-three million, one hundred twenty-three thousand, three".