21313120032033 has 4 divisors (see below), whose sum is σ = 28417493376048. Its totient is φ = 14208746688020.

The previous prime is 21313120031999. The next prime is 21313120032041. The reversal of 21313120032033 is 33023002131312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21313120032033 - 2¹⁰ = 21313120031009 is a prime.

It is a super-2 number, since 2×21313120032033² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21313120031994 and 21313120032012.

It is not an unprimeable number, because it can be changed into a prime (21313120032073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3552186672003 + ... + 3552186672008.

It is an arithmetic number, because the mean of its divisors is an integer number (7104373344012).

Almost surely, 2^{21313120032033} is an apocalyptic number.

It is an amenable number.

21313120032033 is a deficient number, since it is larger than the sum of its proper divisors (7104373344015).

21313120032033 is an equidigital number, since it uses as much as digits as its factorization.

21313120032033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7104373344014.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21313120032033 its reverse (33023002131312), we get a palindrome (54336122163345).

The spelling of 21313120032033 in words is "twenty-one trillion, three hundred thirteen billion, one hundred twenty million, thirty-two thousand, thirty-three".