21012101323033 has 8 divisors (see below), whose sum is σ = 21016300580352. Its totient is φ = 21007902317376.

The previous prime is 21012101322973. The next prime is 21012101323049. The reversal of 21012101323033 is 33032310121012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21012101323033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21012101322995 and 21012101323013.

It is not an unprimeable number, because it can be changed into a prime (21012101321033) 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, 298063716 + ... + 298134202.

It is an arithmetic number, because the mean of its divisors is an integer number (2627037572544).

Almost surely, 2^{21012101323033} is an apocalyptic number.

It is an amenable number.

21012101323033 is a deficient number, since it is larger than the sum of its proper divisors (4199257319).

21012101323033 is an equidigital number, since it uses as much as digits as its factorization.

21012101323033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125831.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21012101323033 its reverse (33032310121012), we get a palindrome (54044411444045).

It can be divided in two parts, 2101210 and 1323033, that added together give a palindrome (3424243).

The spelling of 21012101323033 in words is "twenty-one trillion, twelve billion, one hundred one million, three hundred twenty-three thousand, thirty-three".