1343441252421 has 32 divisors (see below), whose sum is σ = 2026982016000. Its totient is φ = 879157574064.

The previous prime is 1343441252411. The next prime is 1343441252467. The reversal of 1343441252421 is 1242521443431.

1343441252421 is a `hidden beast` number, since 1 + 343 + 4 + 41 + 252 + 4 + 21 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1343441252421 is a prime.

It is a super-2 number, since 2×1343441252421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343441252401) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 470640 + ... + 1705398.

It is an arithmetic number, because the mean of its divisors is an integer number (63343188000).

Almost surely, 2^{1343441252421} is an apocalyptic number.

It is an amenable number.

1343441252421 is a deficient number, since it is larger than the sum of its proper divisors (683540763579).

1343441252421 is a wasteful number, since it uses less digits than its factorization.

1343441252421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235510 (or 1235504 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 1343441252421 its reverse (1242521443431), we get a palindrome (2585962695852).

The spelling of 1343441252421 in words is "one trillion, three hundred forty-three billion, four hundred forty-one million, two hundred fifty-two thousand, four hundred twenty-one".