1223431010429 has 4 divisors (see below), whose sum is σ = 1223433656220. Its totient is φ = 1223428364640.

The previous prime is 1223431010419. The next prime is 1223431010441. The reversal of 1223431010429 is 9240101343221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1199923068100 + 23507942329 = 1095410^2 + 153323^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223431010429 - 2¹⁶ = 1223430944893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223431010395 and 1223431010404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223431010419) 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 3 ways as a sum of consecutive naturals, for example, 427082 + ... + 1621499.

It is an arithmetic number, because the mean of its divisors is an integer number (305858414055).

Almost surely, 2^{1223431010429} is an apocalyptic number.

It is an amenable number.

1223431010429 is a deficient number, since it is larger than the sum of its proper divisors (2645791).

1223431010429 is an equidigital number, since it uses as much as digits as its factorization.

1223431010429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645790.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 1223431010429 in words is "one trillion, two hundred twenty-three billion, four hundred thirty-one million, ten thousand, four hundred twenty-nine".