1213020213 has 8 divisors (see below), whose sum is σ = 1620577728. Its totient is φ = 807071424.

The previous prime is 1213020191. The next prime is 1213020217. The reversal of 1213020213 is 3120203121.

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

It is not a de Polignac number, because 1213020213 - 2¹⁰ = 1213019189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213020192 and 1213020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213020217) 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 7 ways as a sum of consecutive naturals, for example, 400420 + ... + 403437.

It is an arithmetic number, because the mean of its divisors is an integer number (202572216).

Almost surely, 2^1213020213 is an apocalyptic number.

It is an amenable number.

1213020213 is a deficient number, since it is larger than the sum of its proper divisors (407557515).

1213020213 is an equidigital number, since it uses as much as digits as its factorization.

1213020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804363.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1213020213 is about 34828.4397152672. The cubic root of 1213020213 is about 1066.4880967459.

Adding to 1213020213 its reverse (3120203121), we get a palindrome (4333223334).

The spelling of 1213020213 in words is "one billion, two hundred thirteen million, twenty thousand, two hundred thirteen".