1229888805373 has 2 divisors, whose sum is σ = 1229888805374. Its totient is φ = 1229888805372.

The previous prime is 1229888805329. The next prime is 1229888805413. The reversal of 1229888805373 is 3735088889221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1042761618649 + 187127186724 = 1021157^2 + 432582^2 .

It is an emirp because it is prime and its reverse (3735088889221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1229888805373 - 2⁹ = 1229888804861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229888875373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614944402686 + 614944402687.

It is an arithmetic number, because the mean of its divisors is an integer number (614944402687).

Almost surely, 2^{1229888805373} is an apocalyptic number.

It is an amenable number.

1229888805373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229888805373 is an equidigital number, since it uses as much as digits as its factorization.

1229888805373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 1229888805373 in words is "one trillion, two hundred twenty-nine billion, eight hundred eighty-eight million, eight hundred five thousand, three hundred seventy-three".