20330021311311 has 32 divisors (see below), whose sum is σ = 28465221657600. Its totient is φ = 12881702592000.

The previous prime is 20330021311309. The next prime is 20330021311321. The reversal of 20330021311311 is 11311312003302.

It is a happy number.

It is not a de Polignac number, because 20330021311311 - 2¹ = 20330021311309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330021311321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14321590 + ... + 15676988.

It is an arithmetic number, because the mean of its divisors is an integer number (889538176800).

Almost surely, 2^{20330021311311} is an apocalyptic number.

20330021311311 is a deficient number, since it is larger than the sum of its proper divisors (8135200346289).

20330021311311 is a wasteful number, since it uses less digits than its factorization.

20330021311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356807.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20330021311311 its reverse (11311312003302), we get a palindrome (31641333314613).

The spelling of 20330021311311 in words is "twenty trillion, three hundred thirty billion, twenty-one million, three hundred eleven thousand, three hundred eleven".