2103440154020 has 36 divisors (see below), whose sum is σ = 4617627718620. Its totient is φ = 804794489664.

The previous prime is 2103440154017. The next prime is 2103440154029. The reversal of 2103440154020 is 204510443012.

It can be written as a sum of positive squares in 2 ways, for example, as 796131476644 + 1307308677376 = 892262^2 + 1143376^2 .

It is not an unprimeable number, because it can be changed into a prime (2103440154029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99395855 + ... + 99417014.

Almost surely, 2^{2103440154020} is an apocalyptic number.

2103440154020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103440154020 is an abundant number, since it is smaller than the sum of its proper divisors (2514187564600).

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

2103440154020 is a wasteful number, since it uses less digits than its factorization.

2103440154020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198812924 (or 198812899 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 2103440154020 its reverse (204510443012), we get a palindrome (2307950597032).

The spelling of 2103440154020 in words is "two trillion, one hundred three billion, four hundred forty million, one hundred fifty-four thousand, twenty".