21111210000323 has 2 divisors, whose sum is σ = 21111210000324. Its totient is φ = 21111210000322.

The previous prime is 21111210000317. The next prime is 21111210000329. The reversal of 21111210000323 is 32300001211112.

It is a balanced prime because it is at equal distance from previous prime (21111210000317) and next prime (21111210000329).

It is a cyclic number.

It is not a de Polignac number, because 21111210000323 - 2¹⁴ = 21111209983939 is a prime.

It is not a weakly prime, because it can be changed into another prime (21111210000329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555605000161 + 10555605000162.

It is an arithmetic number, because the mean of its divisors is an integer number (10555605000162).

Almost surely, 2^{21111210000323} is an apocalyptic number.

21111210000323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21111210000323 is an equidigital number, since it uses as much as digits as its factorization.

21111210000323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21111210000323 its reverse (32300001211112), we get a palindrome (53411211211435).

The spelling of 21111210000323 in words is "twenty-one trillion, one hundred eleven billion, two hundred ten million, three hundred twenty-three", and thus it is an aban number.