2113333413421 has 4 divisors (see below), whose sum is σ = 2113337242144. Its totient is φ = 2113329584700.

The previous prime is 2113333413407. The next prime is 2113333413439. The reversal of 2113333413421 is 1243143333112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113333413421 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 (2113333413481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911175 + ... + 2248756.

It is an arithmetic number, because the mean of its divisors is an integer number (528334310536).

Almost surely, 2^{2113333413421} is an apocalyptic number.

It is an amenable number.

2113333413421 is a deficient number, since it is larger than the sum of its proper divisors (3828723).

2113333413421 is an equidigital number, since it uses as much as digits as its factorization.

2113333413421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828722.

The product of its digits is 15552, while the sum is 31.

Adding to 2113333413421 its reverse (1243143333112), we get a palindrome (3356476746533).

The spelling of 2113333413421 in words is "two trillion, one hundred thirteen billion, three hundred thirty-three million, four hundred thirteen thousand, four hundred twenty-one".