20121320311033 has 8 divisors (see below), whose sum is σ = 20874769011200. Its totient is φ = 19374394976640.

The previous prime is 20121320311007. The next prime is 20121320311039. The reversal of 20121320311033 is 33011302312102.

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-20121320311033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20121320310995 and 20121320311013.

It is not an unprimeable number, because it can be changed into a prime (20121320311039) 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, 1630835160 + ... + 1630847497.

It is an arithmetic number, because the mean of its divisors is an integer number (2609346126400).

Almost surely, 2^{20121320311033} is an apocalyptic number.

It is an amenable number.

20121320311033 is a deficient number, since it is larger than the sum of its proper divisors (753448700167).

20121320311033 is a wasteful number, since it uses less digits than its factorization.

20121320311033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261682887.

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

Adding to 20121320311033 its reverse (33011302312102), we get a palindrome (53132622623135).

The spelling of 20121320311033 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty million, three hundred eleven thousand, thirty-three".