20302211312003 has 4 divisors (see below), whose sum is σ = 20314390204680. Its totient is φ = 20290032419328.

The previous prime is 20302211311999. The next prime is 20302211312017. The reversal of 20302211312003 is 30021311220302.

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 20302211312003 - 2² = 20302211311999 is a prime.

It is a super-2 number, since 2×20302211312003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302211312083) 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, 6089443838 + ... + 6089447171.

It is an arithmetic number, because the mean of its divisors is an integer number (5078597551170).

Almost surely, 2^{20302211312003} is an apocalyptic number.

20302211312003 is a deficient number, since it is larger than the sum of its proper divisors (12178892677).

20302211312003 is a wasteful number, since it uses less digits than its factorization.

20302211312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12178892676.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20302211312003 its reverse (30021311220302), we get a palindrome (50323522532305).

The spelling of 20302211312003 in words is "twenty trillion, three hundred two billion, two hundred eleven million, three hundred twelve thousand, three".