1001010221323 has 24 divisors (see below), whose sum is σ = 1170817224192. Its totient is φ = 853313577984.

The previous prime is 1001010221317. The next prime is 1001010221461. The reversal of 1001010221323 is 3231220101001.

It is a de Polignac number, because none of the positive numbers 2^k-1001010221323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001010221297 and 1001010221306.

It is not an unprimeable number, because it can be changed into a prime (1001010221923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25918315 + ... + 25956907.

It is an arithmetic number, because the mean of its divisors is an integer number (48784051008).

Almost surely, 2^{1001010221323} is an apocalyptic number.

1001010221323 is a deficient number, since it is larger than the sum of its proper divisors (169807002869).

1001010221323 is a wasteful number, since it uses less digits than its factorization.

1001010221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41491 (or 41484 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1001010221323 its reverse (3231220101001), we get a palindrome (4232230322324).

The spelling of 1001010221323 in words is "one trillion, one billion, ten million, two hundred twenty-one thousand, three hundred twenty-three".