23211130321 has 2 divisors, whose sum is σ = 23211130322. Its totient is φ = 23211130320.

The previous prime is 23211130277. The next prime is 23211130337. The reversal of 23211130321 is 12303111232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22331118096 + 880012225 = 149436^2 + 29665^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211130321 - 2²⁹ = 22674259409 is a prime.

It is not a weakly prime, because it can be changed into another prime (23211130361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605565160 + 11605565161.

It is an arithmetic number, because the mean of its divisors is an integer number (11605565161).

Almost surely, 2^23211130321 is an apocalyptic number.

It is an amenable number.

23211130321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211130321 is an equidigital number, since it uses as much as digits as its factorization.

23211130321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23211130321 its reverse (12303111232), we get a palindrome (35514241553).

The spelling of 23211130321 in words is "twenty-three billion, two hundred eleven million, one hundred thirty thousand, three hundred twenty-one".