20310330133 has 12 divisors (see below), whose sum is σ = 20467466688. Its totient is φ = 20154207240.

The previous prime is 20310330059. The next prime is 20310330149. The reversal of 20310330133 is 33103301302.

It is a de Polignac number, because none of the positive numbers 2^k-20310330133 is a prime.

It is a super-2 number, since 2×20310330133² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20310330133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310330163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29392318 + ... + 29393008.

It is an arithmetic number, because the mean of its divisors is an integer number (1705622224).

Almost surely, 2^20310330133 is an apocalyptic number.

It is an amenable number.

20310330133 is a deficient number, since it is larger than the sum of its proper divisors (157136555).

20310330133 is an frugal number, since it uses more digits than its factorization.

20310330133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624 (or 1341 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20310330133 its reverse (33103301302), we get a palindrome (53413631435).

The spelling of 20310330133 in words is "twenty billion, three hundred ten million, three hundred thirty thousand, one hundred thirty-three".