1213343407 has 2 divisors, whose sum is σ = 1213343408. Its totient is φ = 1213343406.

The previous prime is 1213343359. The next prime is 1213343429. The reversal of 1213343407 is 7043433121.

It is a strong prime.

It is an emirp because it is prime and its reverse (7043433121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213343407 - 2¹¹ = 1213341359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213343707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606671703 + 606671704.

It is an arithmetic number, because the mean of its divisors is an integer number (606671704).

Almost surely, 2^1213343407 is an apocalyptic number.

1213343407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213343407 is an equidigital number, since it uses as much as digits as its factorization.

1213343407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1213343407 is about 34833.0792064095. The cubic root of 1213343407 is about 1066.5828057877.

Adding to 1213343407 its reverse (7043433121), we get a palindrome (8256776528).

The spelling of 1213343407 in words is "one billion, two hundred thirteen million, three hundred forty-three thousand, four hundred seven".