1000023321121 has 16 divisors (see below), whose sum is σ = 1092517050240. Its totient is φ = 907794276480.

The previous prime is 1000023321091. The next prime is 1000023321181. The reversal of 1000023321121 is 1211233200001.

It is a cyclic number.

It is not a de Polignac number, because 1000023321121 - 2⁹ = 1000023320609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000023321095 and 1000023321104.

It is not an unprimeable number, because it can be changed into a prime (1000023321181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22916095 + ... + 22959691.

It is an arithmetic number, because the mean of its divisors is an integer number (68282315640).

Almost surely, 2^{1000023321121} is an apocalyptic number.

1000023321121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1000023321121 is a deficient number, since it is larger than the sum of its proper divisors (92493729119).

1000023321121 is a wasteful number, since it uses less digits than its factorization.

1000023321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46584.

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

Adding to 1000023321121 its reverse (1211233200001), we get a palindrome (2211256521122).

The spelling of 1000023321121 in words is "one trillion, twenty-three million, three hundred twenty-one thousand, one hundred twenty-one".