20211213000233 has 4 divisors (see below), whose sum is σ = 20256226838100. Its totient is φ = 20166199162368.

The previous prime is 20211213000203. The next prime is 20211213000257. The reversal of 20211213000233 is 33200031211202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11834171046889 + 8377041953344 = 3440083^2 + 2894312^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211213000233 - 2²⁸ = 20210944564777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211213000203) 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, 22506918260 + ... + 22506919157.

It is an arithmetic number, because the mean of its divisors is an integer number (5064056709525).

Almost surely, 2^{20211213000233} is an apocalyptic number.

It is an amenable number.

20211213000233 is a deficient number, since it is larger than the sum of its proper divisors (45013837867).

20211213000233 is an equidigital number, since it uses as much as digits as its factorization.

20211213000233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45013837866.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20211213000233 its reverse (33200031211202), we get a palindrome (53411244211435).

The spelling of 20211213000233 in words is "twenty trillion, two hundred eleven billion, two hundred thirteen million, two hundred thirty-three", and thus it is an aban number.