2103031113102 has 64 divisors (see below), whose sum is σ = 4921814822400. Its totient is φ = 663785176320.

The previous prime is 2103031113101. The next prime is 2103031113109. The reversal of 2103031113102 is 2013111303012.

2103031113102 is a `hidden beast` number, since 2 + 10 + 30 + 311 + 1 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103031113101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1561327 + ... + 2577557.

It is an arithmetic number, because the mean of its divisors is an integer number (76903356600).

Almost surely, 2^{2103031113102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103031113102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2460907411200).

2103031113102 is an abundant number, since it is smaller than the sum of its proper divisors (2818783709298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2103031113102 is a wasteful number, since it uses less digits than its factorization.

2103031113102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018278 (or 1018272 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 2103031113102 its reverse (2013111303012), we get a palindrome (4116142416114).

The spelling of 2103031113102 in words is "two trillion, one hundred three billion, thirty-one million, one hundred thirteen thousand, one hundred two".