2121323031003 has 32 divisors (see below), whose sum is σ = 3099478217472. Its totient is φ = 1279853798400.

The previous prime is 2121323030977. The next prime is 2121323031007. The reversal of 2121323031003 is 3001303231212.

It is not a de Polignac number, because 2121323031003 - 2¹⁰ = 2121323029979 is a prime.

It is a super-2 number, since 2×2121323031003² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121323031007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38502051 + ... + 38557107.

It is an arithmetic number, because the mean of its divisors is an integer number (96858694296).

Almost surely, 2^{2121323031003} is an apocalyptic number.

2121323031003 is a deficient number, since it is larger than the sum of its proper divisors (978155186469).

2121323031003 is a wasteful number, since it uses less digits than its factorization.

2121323031003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60315.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2121323031003 its reverse (3001303231212), we get a palindrome (5122626262215).

The spelling of 2121323031003 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-three million, thirty-one thousand, three".