1213314345 has 24 divisors (see below), whose sum is σ = 2105438400. Its totient is φ = 646374816.

The previous prime is 1213314341. The next prime is 1213314367. The reversal of 1213314345 is 5434133121.

It is a happy number.

1213314345 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 314 + 345 = 666.

It is not a de Polignac number, because 1213314345 - 2² = 1213314341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213314341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26686 + ... + 56024.

It is an arithmetic number, because the mean of its divisors is an integer number (87726600).

Almost surely, 2^1213314345 is an apocalyptic number.

1213314345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1213314345 is a deficient number, since it is larger than the sum of its proper divisors (892124055).

1213314345 is a wasteful number, since it uses less digits than its factorization.

1213314345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30269 (or 30266 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1213314345 is about 34832.6620429734. The cubic root of 1213314345 is about 1066.5742901230.

Adding to 1213314345 its reverse (5434133121), we get a palindrome (6647447466).

The spelling of 1213314345 in words is "one billion, two hundred thirteen million, three hundred fourteen thousand, three hundred forty-five".