1023423143 has 4 divisors (see below), whose sum is σ = 1027227960. Its totient is φ = 1019618328.

The previous prime is 1023423097. The next prime is 1023423151. The reversal of 1023423143 is 3413243201.

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 1023423143 - 2⁸ = 1023422887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023423343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902005 + ... + 1902542.

It is an arithmetic number, because the mean of its divisors is an integer number (256806990).

Almost surely, 2^1023423143 is an apocalyptic number.

1023423143 is a deficient number, since it is larger than the sum of its proper divisors (3804817).

1023423143 is an equidigital number, since it uses as much as digits as its factorization.

1023423143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804816.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1023423143 is about 31990.9853396234. The cubic root of 1023423143 is about 1007.7475350210.

Adding to 1023423143 its reverse (3413243201), we get a palindrome (4436666344).

The spelling of 1023423143 in words is "one billion, twenty-three million, four hundred twenty-three thousand, one hundred forty-three".