1345440045323 has 4 divisors (see below), whose sum is σ = 1467752776728. Its totient is φ = 1223127313920.

The previous prime is 1345440045319. The next prime is 1345440045331. The reversal of 1345440045323 is 3235400445431.

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 1345440045323 - 2² = 1345440045319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345440045623) 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, 61156365686 + ... + 61156365707.

It is an arithmetic number, because the mean of its divisors is an integer number (366938194182).

Almost surely, 2^{1345440045323} is an apocalyptic number.

1345440045323 is a deficient number, since it is larger than the sum of its proper divisors (122312731405).

1345440045323 is a wasteful number, since it uses less digits than its factorization.

1345440045323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122312731404.

The product of its (nonzero) digits is 345600, while the sum is 38.

The spelling of 1345440045323 in words is "one trillion, three hundred forty-five billion, four hundred forty million, forty-five thousand, three hundred twenty-three".