2113400243438 has 16 divisors (see below), whose sum is σ = 3608651799936. Its totient is φ = 918869670840.

The previous prime is 2113400243419. The next prime is 2113400243483. The reversal of 2113400243438 is 8343420043112.

It is a junction number, because it is equal to n+sod(n) for n = 2113400243398 and 2113400243407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088339656 + ... + 2088340667.

It is an arithmetic number, because the mean of its divisors is an integer number (225540737496).

Almost surely, 2^{2113400243438} is an apocalyptic number.

2113400243438 is a deficient number, since it is larger than the sum of its proper divisors (1495251556498).

2113400243438 is a wasteful number, since it uses less digits than its factorization.

2113400243438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176680359.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 2113400243438 in words is "two trillion, one hundred thirteen billion, four hundred million, two hundred forty-three thousand, four hundred thirty-eight".