1345223411 has 12 divisors (see below), whose sum is σ = 1576804680. Its totient is φ = 1144241280.

The previous prime is 1345223359. The next prime is 1345223417. The reversal of 1345223411 is 1143225431.

It is a happy number.

It is not a de Polignac number, because 1345223411 - 2¹⁰ = 1345222387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345223417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98366 + ... + 111203.

It is an arithmetic number, because the mean of its divisors is an integer number (131400390).

Almost surely, 2^1345223411 is an apocalyptic number.

1345223411 is a deficient number, since it is larger than the sum of its proper divisors (231581269).

1345223411 is a wasteful number, since it uses less digits than its factorization.

1345223411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209714 (or 209707 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 1345223411 is about 36677.2873996974. The cubic root of 1345223411 is about 1103.9044200120.

Adding to 1345223411 its reverse (1143225431), we get a palindrome (2488448842).

It can be divided in two parts, 13452 and 23411, that added together give a palindrome (36863).

The spelling of 1345223411 in words is "one billion, three hundred forty-five million, two hundred twenty-three thousand, four hundred eleven".