21012023333334 has 64 divisors (see below), whose sum is σ = 46322104614912. Its totient is φ = 6301269895200.

The previous prime is 21012023333317. The next prime is 21012023333339. The reversal of 21012023333334 is 43333332021012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21012023333339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1697062 + ... + 6701049.

It is an arithmetic number, because the mean of its divisors is an integer number (723782884608).

Almost surely, 2^{21012023333334} is an apocalyptic number.

21012023333334 is an abundant number, since it is smaller than the sum of its proper divisors (25310081281578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21012023333334 is a wasteful number, since it uses less digits than its factorization.

21012023333334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398521.

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 21012023333334 its reverse (43333332021012), we get a palindrome (64345355354346).

The spelling of 21012023333334 in words is "twenty-one trillion, twelve billion, twenty-three million, three hundred thirty-three thousand, three hundred thirty-four".