1229358489451 has 2 divisors, whose sum is σ = 1229358489452. Its totient is φ = 1229358489450.

The previous prime is 1229358489449. The next prime is 1229358489481. The reversal of 1229358489451 is 1549848539221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1229358489451 - 2¹ = 1229358489449 is a prime.

It is a super-2 number, since 2×1229358489451² (a number of 25 digits) contains 22 as substring.

Together with 1229358489449, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1229358489451.

It is not a weakly prime, because it can be changed into another prime (1229358489481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614679244725 + 614679244726.

It is an arithmetic number, because the mean of its divisors is an integer number (614679244726).

Almost surely, 2^{1229358489451} is an apocalyptic number.

1229358489451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229358489451 is an equidigital number, since it uses as much as digits as its factorization.

1229358489451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24883200, while the sum is 61.

The spelling of 1229358489451 in words is "one trillion, two hundred twenty-nine billion, three hundred fifty-eight million, four hundred eighty-nine thousand, four hundred fifty-one".