1043431101323 has 4 divisors (see below), whose sum is σ = 1123695032208. Its totient is φ = 963167170440.

The previous prime is 1043431101313. The next prime is 1043431101409. The reversal of 1043431101323 is 3231011343401.

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 1043431101323 - 2³² = 1039136134027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043431101292 and 1043431101301.

It is not an unprimeable number, because it can be changed into a prime (1043431101313) 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, 40131965423 + ... + 40131965448.

It is an arithmetic number, because the mean of its divisors is an integer number (280923758052).

Almost surely, 2^{1043431101323} is an apocalyptic number.

1043431101323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1043431101323 is a deficient number, since it is larger than the sum of its proper divisors (80263930885).

1043431101323 is an equidigital number, since it uses as much as digits as its factorization.

1043431101323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80263930884.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1043431101323 its reverse (3231011343401), we get a palindrome (4274442444724).

The spelling of 1043431101323 in words is "one trillion, forty-three billion, four hundred thirty-one million, one hundred one thousand, three hundred twenty-three".