21012023202133 has 12 divisors (see below), whose sum is σ = 22452964584960. Its totient is φ = 19609020787752.

The previous prime is 21012023202113. The next prime is 21012023202167. The reversal of 21012023202133 is 33120232021012.

It is not a de Polignac number, because 21012023202133 - 2⁵ = 21012023202101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21012023202113) 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 in 11 ways as a sum of consecutive naturals, for example, 123093141 + ... + 123263722.

It is an arithmetic number, because the mean of its divisors is an integer number (1871080382080).

Almost surely, 2^{21012023202133} is an apocalyptic number.

It is an amenable number.

21012023202133 is a deficient number, since it is larger than the sum of its proper divisors (1440941382827).

21012023202133 is an equidigital number, since it uses as much as digits as its factorization.

21012023202133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246357016 (or 246356949 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21012023202133 its reverse (33120232021012), we get a palindrome (54132255223145).

The spelling of 21012023202133 in words is "twenty-one trillion, twelve billion, twenty-three million, two hundred two thousand, one hundred thirty-three".