2113330432421 has 16 divisors (see below), whose sum is σ = 2278742067840. Its totient is φ = 1948326333120.

The previous prime is 2113330432379. The next prime is 2113330432427. The reversal of 2113330432421 is 1242340333112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113330432421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113330432427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105852386 + ... + 105872348.

It is an arithmetic number, because the mean of its divisors is an integer number (142421379240).

Almost surely, 2^{2113330432421} is an apocalyptic number.

It is an amenable number.

2113330432421 is a deficient number, since it is larger than the sum of its proper divisors (165411635419).

2113330432421 is a wasteful number, since it uses less digits than its factorization.

2113330432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29756.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 2113330432421 its reverse (1242340333112), we get a palindrome (3355670765533).

The spelling of 2113330432421 in words is "two trillion, one hundred thirteen billion, three hundred thirty million, four hundred thirty-two thousand, four hundred twenty-one".