1003122231321 has 32 divisors (see below), whose sum is σ = 1532837779200. Its totient is φ = 571611905280.

The previous prime is 1003122231263. The next prime is 1003122231427. The reversal of 1003122231321 is 1231322213001.

1003122231321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1003122231321 - 2⁶ = 1003122231257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1003122631321) 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, 46299231 + ... + 46320891.

It is an arithmetic number, because the mean of its divisors is an integer number (47901180600).

Almost surely, 2^{1003122231321} is an apocalyptic number.

It is an amenable number.

1003122231321 is a deficient number, since it is larger than the sum of its proper divisors (529715547879).

1003122231321 is a wasteful number, since it uses less digits than its factorization.

1003122231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27729.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1003122231321 its reverse (1231322213001), we get a palindrome (2234444444322).

The spelling of 1003122231321 in words is "one trillion, three billion, one hundred twenty-two million, two hundred thirty-one thousand, three hundred twenty-one".