3211001020823 has 2 divisors, whose sum is σ = 3211001020824. Its totient is φ = 3211001020822.

The previous prime is 3211001020807. The next prime is 3211001020849. The reversal of 3211001020823 is 3280201001123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3211001020823 - 2⁴ = 3211001020807 is a prime.

It is a super-3 number, since 3×3211001020823³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3211001023823) 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, 1605500510411 + 1605500510412.

It is an arithmetic number, because the mean of its divisors is an integer number (1605500510412).

Almost surely, 2^{3211001020823} is an apocalyptic number.

3211001020823 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211001020823 is an equidigital number, since it uses as much as digits as its factorization.

3211001020823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 3211001020823 its reverse (3280201001123), we get a palindrome (6491202021946).

The spelling of 3211001020823 in words is "three trillion, two hundred eleven billion, one million, twenty thousand, eight hundred twenty-three".