1213210353 has 32 divisors (see below), whose sum is σ = 1690519680. Its totient is φ = 773245440.

The previous prime is 1213210343. The next prime is 1213210357. The reversal of 1213210353 is 3530123121.

It is not a de Polignac number, because 1213210353 - 2⁴ = 1213210337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213210357) 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, 2242263 + ... + 2242803.

It is an arithmetic number, because the mean of its divisors is an integer number (52828740).

Almost surely, 2^1213210353 is an apocalyptic number.

It is an amenable number.

1213210353 is a deficient number, since it is larger than the sum of its proper divisors (477309327).

1213210353 is a wasteful number, since it uses less digits than its factorization.

1213210353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1213210353 is about 34831.1692740855. The cubic root of 1213210353 is about 1066.5438175685.

Adding to 1213210353 its reverse (3530123121), we get a palindrome (4743333474).

The spelling of 1213210353 in words is "one billion, two hundred thirteen million, two hundred ten thousand, three hundred fifty-three".