20331331330313 has 32 divisors (see below), whose sum is σ = 22093073118720. Its totient is φ = 18639105281280.

The previous prime is 20331331330309. The next prime is 20331331330319. The reversal of 20331331330313 is 31303313313302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20331331330313 - 2² = 20331331330309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20331331330319) 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, 53927006 + ... + 54302712.

It is an arithmetic number, because the mean of its divisors is an integer number (690408534960).

Almost surely, 2^{20331331330313} is an apocalyptic number.

It is an amenable number.

20331331330313 is a deficient number, since it is larger than the sum of its proper divisors (1761741788407).

20331331330313 is a wasteful number, since it uses less digits than its factorization.

20331331330313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376277.

The product of its (nonzero) digits is 13122, while the sum is 29.

Adding to 20331331330313 its reverse (31303313313302), we get a palindrome (51634644643615).

The spelling of 20331331330313 in words is "twenty trillion, three hundred thirty-one billion, three hundred thirty-one million, three hundred thirty thousand, three hundred thirteen".