1023313432423 has 4 divisors (see below), whose sum is σ = 1023316853680. Its totient is φ = 1023310011168.

The previous prime is 1023313432367. The next prime is 1023313432457. The reversal of 1023313432423 is 3242343133201.

It is a happy number.

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 1023313432423 - 2²¹ = 1023311335271 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 (1023313432483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213890 + ... + 1876207.

It is an arithmetic number, because the mean of its divisors is an integer number (255829213420).

Almost surely, 2^{1023313432423} is an apocalyptic number.

1023313432423 is a deficient number, since it is larger than the sum of its proper divisors (3421257).

1023313432423 is an equidigital number, since it uses as much as digits as its factorization.

1023313432423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421256.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 1023313432423 its reverse (3242343133201), we get a palindrome (4265656565624).

The spelling of 1023313432423 in words is "one trillion, twenty-three billion, three hundred thirteen million, four hundred thirty-two thousand, four hundred twenty-three".