2113333400021 has 8 divisors (see below), whose sum is σ = 2237661210240. Its totient is φ = 1989007154368.

The previous prime is 2113333400011. The next prime is 2113333400023. The reversal of 2113333400021 is 1200043333112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113333400021 - 2³⁴ = 2096153530837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113333400021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113333400023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3490490 + ... + 4050948.

It is an arithmetic number, because the mean of its divisors is an integer number (279707651280).

Almost surely, 2^{2113333400021} is an apocalyptic number.

It is an amenable number.

2113333400021 is a deficient number, since it is larger than the sum of its proper divisors (124327810219).

2113333400021 is a wasteful number, since it uses less digits than its factorization.

2113333400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782283.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2113333400021 its reverse (1200043333112), we get a palindrome (3313376733133).

The spelling of 2113333400021 in words is "two trillion, one hundred thirteen billion, three hundred thirty-three million, four hundred thousand, twenty-one".