1210320213 has 8 divisors (see below), whose sum is σ = 1614110688. Its totient is φ = 806704944.

The previous prime is 1210320179. The next prime is 1210320229. The reversal of 1210320213 is 3120230121.

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

It is not a de Polignac number, because 1210320213 - 2⁶ = 1210320149 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1210320192 and 1210320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210320263) 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, 26731 + ... + 55992.

It is an arithmetic number, because the mean of its divisors is an integer number (201763836).

Almost surely, 2^1210320213 is an apocalyptic number.

It is an amenable number.

1210320213 is a deficient number, since it is larger than the sum of its proper divisors (403790475).

1210320213 is an equidigital number, since it uses as much as digits as its factorization.

1210320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87603.

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

The square root of 1210320213 is about 34789.6566956330. The cubic root of 1210320213 is about 1065.6962283902.

Adding to 1210320213 its reverse (3120230121), we get a palindrome (4330550334).

The spelling of 1210320213 in words is "one billion, two hundred ten million, three hundred twenty thousand, two hundred thirteen".