21010123133033 has 8 divisors (see below), whose sum is σ = 21263347199136. Its totient is φ = 20756901211200.

The previous prime is 21010123132997. The next prime is 21010123133039. The reversal of 21010123133033 is 33033132101012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21010123133033 - 2⁸ = 21010123132777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21010123133039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28782578 + ... + 29503508.

It is an arithmetic number, because the mean of its divisors is an integer number (2657918399892).

Almost surely, 2^{21010123133033} is an apocalyptic number.

It is an amenable number.

21010123133033 is a deficient number, since it is larger than the sum of its proper divisors (253224066103).

21010123133033 is an equidigital number, since it uses as much as digits as its factorization.

21010123133033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072135.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21010123133033 its reverse (33033132101012), we get a palindrome (54043255234045).

The spelling of 21010123133033 in words is "twenty-one trillion, ten billion, one hundred twenty-three million, one hundred thirty-three thousand, thirty-three".