1213003211 has 8 divisors (see below), whose sum is σ = 1418529024. Its totient is φ = 1015537320.

The previous prime is 1213003199. The next prime is 1213003229. The reversal of 1213003211 is 1123003121.

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

It is not a de Polignac number, because 1213003211 - 2⁶ = 1213003147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213003291) 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, 2014655 + ... + 2015256.

It is an arithmetic number, because the mean of its divisors is an integer number (177316128).

Almost surely, 2^1213003211 is an apocalyptic number.

1213003211 is a deficient number, since it is larger than the sum of its proper divisors (205525813).

1213003211 is an equidigital number, since it uses as much as digits as its factorization.

1213003211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029961.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1213003211 is about 34828.1956322747. The cubic root of 1213003211 is about 1066.4831139997.

Adding to 1213003211 its reverse (1123003121), we get a palindrome (2336006332).

The spelling of 1213003211 in words is "one billion, two hundred thirteen million, three thousand, two hundred eleven".