1345223211 has 8 divisors (see below), whose sum is σ = 1801136640. Its totient is φ = 893062632.

The previous prime is 1345223147. The next prime is 1345223219. The reversal of 1345223211 is 1123225431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1345223211 - 2⁶ = 1345223147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345223219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937375 + ... + 938808.

It is an arithmetic number, because the mean of its divisors is an integer number (225142080).

Almost surely, 2^1345223211 is an apocalyptic number.

1345223211 is a deficient number, since it is larger than the sum of its proper divisors (455913429).

1345223211 is a wasteful number, since it uses less digits than its factorization.

1345223211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876425.

The product of its digits is 1440, while the sum is 24.

The square root of 1345223211 is about 36677.2846732143. The cubic root of 1345223211 is about 1103.9043653046.

Adding to 1345223211 its reverse (1123225431), we get a palindrome (2468448642).

It can be divided in two parts, 13452 and 23211, that added together give a palindrome (36663).

The spelling of 1345223211 in words is "one billion, three hundred forty-five million, two hundred twenty-three thousand, two hundred eleven".