23021033321 has 16 divisors (see below), whose sum is σ = 27060324480. Its totient is φ = 19307896320.

The previous prime is 23021033317. The next prime is 23021033351. The reversal of 23021033321 is 12333012032.

It is a cyclic number.

It is not a de Polignac number, because 23021033321 - 2² = 23021033317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23021033293 and 23021033302.

It is not an unprimeable number, because it can be changed into a prime (23021033351) 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, 227516 + ... + 312738.

It is an arithmetic number, because the mean of its divisors is an integer number (1691270280).

Almost surely, 2^23021033321 is an apocalyptic number.

It is an amenable number.

23021033321 is a deficient number, since it is larger than the sum of its proper divisors (4039291159).

23021033321 is a wasteful number, since it uses less digits than its factorization.

23021033321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87136.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23021033321 its reverse (12333012032), we get a palindrome (35354045353).

The spelling of 23021033321 in words is "twenty-three billion, twenty-one million, thirty-three thousand, three hundred twenty-one".