1343330621261 has 2 divisors, whose sum is σ = 1343330621262. Its totient is φ = 1343330621260.

The previous prime is 1343330621231. The next prime is 1343330621291. The reversal of 1343330621261 is 1621260333431.

It is a balanced prime because it is at equal distance from previous prime (1343330621231) and next prime (1343330621291).

It can be written as a sum of positive squares in only one way, i.e., 1292246032900 + 51084588361 = 1136770^2 + 226019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343330621261 - 2³⁴ = 1326150752077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1343330621201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671665310630 + 671665310631.

It is an arithmetic number, because the mean of its divisors is an integer number (671665310631).

Almost surely, 2^{1343330621261} is an apocalyptic number.

It is an amenable number.

1343330621261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343330621261 is an equidigital number, since it uses as much as digits as its factorization.

1343330621261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 35.

Adding to 1343330621261 its reverse (1621260333431), we get a palindrome (2964590954692).

The spelling of 1343330621261 in words is "one trillion, three hundred forty-three billion, three hundred thirty million, six hundred twenty-one thousand, two hundred sixty-one".