20333100013 has 4 divisors (see below), whose sum is σ = 20805962848. Its totient is φ = 19860237180.

The previous prime is 20333100001. The next prime is 20333100023. The reversal of 20333100013 is 31000133302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20333100013 - 2¹⁷ = 20332968941 is a prime.

It is a super-2 number, since 2×20333100013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20333100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333100023) 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, 236431353 + ... + 236431438.

It is an arithmetic number, because the mean of its divisors is an integer number (5201490712).

Almost surely, 2^20333100013 is an apocalyptic number.

It is an amenable number.

20333100013 is a deficient number, since it is larger than the sum of its proper divisors (472862835).

20333100013 is an equidigital number, since it uses as much as digits as its factorization.

20333100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472862834.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20333100013 its reverse (31000133302), we get a palindrome (51333233315).

The spelling of 20333100013 in words is "twenty billion, three hundred thirty-three million, one hundred thousand, thirteen".