20131103102 has 16 divisors (see below), whose sum is σ = 33563350512. Its totient is φ = 8977849920.

The previous prime is 20131103081. The next prime is 20131103137. The reversal of 20131103102 is 20130113102.

It is a super-2 number, since 2×20131103102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 8631383 + ... + 8633714.

It is an arithmetic number, because the mean of its divisors is an integer number (2097709407).

Almost surely, 2^20131103102 is an apocalyptic number.

20131103102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20131103102 is a deficient number, since it is larger than the sum of its proper divisors (13432247410).

20131103102 is a wasteful number, since it uses less digits than its factorization.

20131103102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17265163.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20131103102 its reverse (20130113102), we get a palindrome (40261216204).

The spelling of 20131103102 in words is "twenty billion, one hundred thirty-one million, one hundred three thousand, one hundred two".