20330313100331 has 4 divisors (see below), whose sum is σ = 21894183338832. Its totient is φ = 18766442861832.

The previous prime is 20330313100327. The next prime is 20330313100393. The reversal of 20330313100331 is 13300131303302.

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

It is a cyclic number.

It is not a de Polignac number, because 20330313100331 - 2² = 20330313100327 is a prime.

It is a super-2 number, since 2×20330313100331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20330313100297 and 20330313100306.

It is not an unprimeable number, because it can be changed into a prime (20330313120331) 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, 781935119231 + ... + 781935119256.

It is an arithmetic number, because the mean of its divisors is an integer number (5473545834708).

Almost surely, 2^{20330313100331} is an apocalyptic number.

20330313100331 is a deficient number, since it is larger than the sum of its proper divisors (1563870238501).

20330313100331 is a wasteful number, since it uses less digits than its factorization.

20330313100331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563870238500.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 20330313100331 its reverse (13300131303302), we get a palindrome (33630444403633).

The spelling of 20330313100331 in words is "twenty trillion, three hundred thirty billion, three hundred thirteen million, one hundred thousand, three hundred thirty-one".