20123001211333 has 4 divisors (see below), whose sum is σ = 20227265466508. Its totient is φ = 20018736956160.

The previous prime is 20123001211331. The next prime is 20123001211343. The reversal of 20123001211333 is 33311210032102.

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 3653056222209 + 16469944989124 = 1911297^2 + 4058318^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123001211333 - 2¹ = 20123001211331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123001211331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52132127298 + ... + 52132127683.

It is an arithmetic number, because the mean of its divisors is an integer number (5056816366627).

Almost surely, 2^{20123001211333} is an apocalyptic number.

It is an amenable number.

20123001211333 is a deficient number, since it is larger than the sum of its proper divisors (104264255175).

20123001211333 is a wasteful number, since it uses less digits than its factorization.

20123001211333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104264255174.

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

Adding to 20123001211333 its reverse (33311210032102), we get a palindrome (53434211243435).

The spelling of 20123001211333 in words is "twenty trillion, one hundred twenty-three billion, one million, two hundred eleven thousand, three hundred thirty-three".