1345344031423 has 16 divisors (see below), whose sum is σ = 1538869363200. Its totient is φ = 1152152368416.

The previous prime is 1345344031373. The next prime is 1345344031433. The reversal of 1345344031423 is 3241304435431.

It is not a de Polignac number, because 1345344031423 - 2²⁹ = 1344807160511 is a prime.

It is a super-2 number, since 2×1345344031423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345344031433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66077361 + ... + 66097717.

It is an arithmetic number, because the mean of its divisors is an integer number (96179335200).

Almost surely, 2^{1345344031423} is an apocalyptic number.

1345344031423 is a deficient number, since it is larger than the sum of its proper divisors (193525331777).

1345344031423 is a wasteful number, since it uses less digits than its factorization.

1345344031423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28086.

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 1345344031423 its reverse (3241304435431), we get a palindrome (4586648466854).

The spelling of 1345344031423 in words is "one trillion, three hundred forty-five billion, three hundred forty-four million, thirty-one thousand, four hundred twenty-three".