21433410131351 has 2 divisors, whose sum is σ = 21433410131352. Its totient is φ = 21433410131350.

The previous prime is 21433410131311. The next prime is 21433410131363. The reversal of 21433410131351 is 15313101433412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21433410131351 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21433410131311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10716705065675 + 10716705065676.

It is an arithmetic number, because the mean of its divisors is an integer number (10716705065676).

Almost surely, 2^{21433410131351} is an apocalyptic number.

21433410131351 is a deficient number, since it is larger than the sum of its proper divisors (1).

21433410131351 is an equidigital number, since it uses as much as digits as its factorization.

21433410131351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 21433410131351 its reverse (15313101433412), we get a palindrome (36746511564763).

The spelling of 21433410131351 in words is "twenty-one trillion, four hundred thirty-three billion, four hundred ten million, one hundred thirty-one thousand, three hundred fifty-one".