2113333400421 has 8 divisors (see below), whose sum is σ = 3130864296960. Its totient is φ = 1408888933596.

The previous prime is 2113333400417. The next prime is 2113333400473. The reversal of 2113333400421 is 1240043333112.

It is a happy number.

2113333400421 is a `hidden beast` number, since 211 + 3 + 3 + 3 + 3 + 400 + 42 + 1 = 666.

It is not a de Polignac number, because 2113333400421 - 2² = 2113333400417 is a prime.

It is a super-2 number, since 2×2113333400421² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 78271607423 = 2113333400421 / (2 + 1 + 1 + 3 + 3 + 3 + 3 + 4 + 0 + 0 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113333400411) 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, 39135803685 + ... + 39135803738.

It is an arithmetic number, because the mean of its divisors is an integer number (391358037120).

Almost surely, 2^{2113333400421} is an apocalyptic number.

It is an amenable number.

2113333400421 is a deficient number, since it is larger than the sum of its proper divisors (1017530896539).

2113333400421 is an equidigital number, since it uses as much as digits as its factorization.

2113333400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78271607432 (or 78271607426 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 2113333400421 its reverse (1240043333112), we get a palindrome (3353376733533).

The spelling of 2113333400421 in words is "two trillion, one hundred thirteen billion, three hundred thirty-three million, four hundred thousand, four hundred twenty-one".