20020311302003 has 16 divisors (see below), whose sum is σ = 21006311200512. Its totient is φ = 19055615040000.

The previous prime is 20020311301981. The next prime is 20020311302009. The reversal of 20020311302003 is 30020311302002.

It is a cyclic number.

It is not a de Polignac number, because 20020311302003 - 2¹² = 20020311297907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020311302009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28779575 + ... + 29467007.

It is an arithmetic number, because the mean of its divisors is an integer number (1312894450032).

Almost surely, 2^{20020311302003} is an apocalyptic number.

20020311302003 is a deficient number, since it is larger than the sum of its proper divisors (985999898509).

20020311302003 is a wasteful number, since it uses less digits than its factorization.

20020311302003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702926.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20020311302003 its reverse (30020311302002), we get a palindrome (50040622604005).

Subtracting 20020311302003 from its reverse (30020311302002), we obtain a palindrome (9999999999999).

The spelling of 20020311302003 in words is "twenty trillion, twenty billion, three hundred eleven million, three hundred two thousand, three".