2111103430420 has 48 divisors (see below), whose sum is σ = 4503619612800. Its totient is φ = 831153052800.

The previous prime is 2111103430409. The next prime is 2111103430477. The reversal of 2111103430420 is 240343011112.

It is a junction number, because it is equal to n+sod(n) for n = 2111103430391 and 2111103430400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2877430 + ... + 3535789.

It is an arithmetic number, because the mean of its divisors is an integer number (93825408600).

Almost surely, 2^{2111103430420} is an apocalyptic number.

2111103430420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111103430420 is an abundant number, since it is smaller than the sum of its proper divisors (2392516182380).

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

2111103430420 is a wasteful number, since it uses less digits than its factorization.

2111103430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413488 (or 6413486 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2111103430420 its reverse (240343011112), we get a palindrome (2351446441532).

The spelling of 2111103430420 in words is "two trillion, one hundred eleven billion, one hundred three million, four hundred thirty thousand, four hundred twenty".