1213351353 has 32 divisors (see below), whose sum is σ = 1926288000. Its totient is φ = 752122368.

The previous prime is 1213351333. The next prime is 1213351379. The reversal of 1213351353 is 3531533121.

1213351353 is a `hidden beast` number, since 12 + 133 + 513 + 5 + 3 = 666.

It is not a de Polignac number, because 1213351353 - 2¹² = 1213347257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1213351333) 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 31 ways as a sum of consecutive naturals, for example, 22173 + ... + 54021.

It is an arithmetic number, because the mean of its divisors is an integer number (60196500).

Almost surely, 2^1213351353 is an apocalyptic number.

It is an amenable number.

1213351353 is a deficient number, since it is larger than the sum of its proper divisors (712936647).

1213351353 is a wasteful number, since it uses less digits than its factorization.

1213351353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31958 (or 31952 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 1213351353 is about 34833.1932644712. The cubic root of 1213351353 is about 1066.5851340784.

Adding to 1213351353 its reverse (3531533121), we get a palindrome (4744884474).

The spelling of 1213351353 in words is "one billion, two hundred thirteen million, three hundred fifty-one thousand, three hundred fifty-three".