1223808146413 has 16 divisors (see below), whose sum is σ = 1272947883760. Its totient is φ = 1175573938176.

The previous prime is 1223808146411. The next prime is 1223808146471. The reversal of 1223808146413 is 3146418083221.

It can be written as a sum of positive squares in 8 ways, for example, as 660795029449 + 563013116964 = 812893^2 + 750342^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223808146413 - 2¹ = 1223808146411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223808146413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223808146411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1051045 + ... + 1884757.

It is an arithmetic number, because the mean of its divisors is an integer number (79559242735).

Almost surely, 2^{1223808146413} is an apocalyptic number.

It is an amenable number.

1223808146413 is a deficient number, since it is larger than the sum of its proper divisors (49139737347).

1223808146413 is an equidigital number, since it uses as much as digits as its factorization.

1223808146413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834256.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 1223808146413 in words is "one trillion, two hundred twenty-three billion, eight hundred eight million, one hundred forty-six thousand, four hundred thirteen".