20020311103 has 8 divisors (see below), whose sum is σ = 22828590288. Its totient is φ = 17393211264.

The previous prime is 20020311079. The next prime is 20020311119. The reversal of 20020311103 is 30111302002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20020311103 - 2¹⁷ = 20020180031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020311173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45294601 + ... + 45295042.

It is an arithmetic number, because the mean of its divisors is an integer number (2853573786).

Almost surely, 2^20020311103 is an apocalyptic number.

20020311103 is a deficient number, since it is larger than the sum of its proper divisors (2808279185).

20020311103 is a wasteful number, since it uses less digits than its factorization.

20020311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90589673.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20020311103 its reverse (30111302002), we get a palindrome (50131613105).

The spelling of 20020311103 in words is "twenty billion, twenty million, three hundred eleven thousand, one hundred three".