1234355213449 has 2 divisors, whose sum is σ = 1234355213450. Its totient is φ = 1234355213448.

The previous prime is 1234355213393. The next prime is 1234355213537. The reversal of 1234355213449 is 9443125534321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 659616860224 + 574738353225 = 812168^2 + 758115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234355213449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1234355213399 and 1234355213408.

It is not a weakly prime, because it can be changed into another prime (1234355213249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617177606724 + 617177606725.

It is an arithmetic number, because the mean of its divisors is an integer number (617177606725).

Almost surely, 2^{1234355213449} is an apocalyptic number.

It is an amenable number.

1234355213449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234355213449 is an equidigital number, since it uses as much as digits as its factorization.

1234355213449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 46.

The spelling of 1234355213449 in words is "one trillion, two hundred thirty-four billion, three hundred fifty-five million, two hundred thirteen thousand, four hundred forty-nine".