1423431622311 has 4 divisors (see below), whose sum is σ = 1897908829752. Its totient is φ = 948954414872.

The previous prime is 1423431622273. The next prime is 1423431622337. The reversal of 1423431622311 is 1132261343241.

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

It is a cyclic number.

It is not a de Polignac number, because 1423431622311 - 2¹¹ = 1423431620263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423431622111) 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, 237238603716 + ... + 237238603721.

It is an arithmetic number, because the mean of its divisors is an integer number (474477207438).

Almost surely, 2^{1423431622311} is an apocalyptic number.

1423431622311 is a deficient number, since it is larger than the sum of its proper divisors (474477207441).

1423431622311 is an equidigital number, since it uses as much as digits as its factorization.

1423431622311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474477207440.

The product of its digits is 20736, while the sum is 33.

Adding to 1423431622311 its reverse (1132261343241), we get a palindrome (2555692965552).

The spelling of 1423431622311 in words is "one trillion, four hundred twenty-three billion, four hundred thirty-one million, six hundred twenty-two thousand, three hundred eleven".