1211213321313 has 8 divisors (see below), whose sum is σ = 1670639064000. Its totient is φ = 779631563088.

The previous prime is 1211213321303. The next prime is 1211213321323. The reversal of 1211213321313 is 3131233121121.

It is an interprime number because it is at equal distance from previous prime (1211213321303) and next prime (1211213321323).

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

It is not a de Polignac number, because 1211213321313 - 2³⁰ = 1210139579489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1211213321303) 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, 6960996013 + ... + 6960996186.

It is an arithmetic number, because the mean of its divisors is an integer number (208829883000).

Almost surely, 2^{1211213321313} is an apocalyptic number.

It is an amenable number.

1211213321313 is a deficient number, since it is larger than the sum of its proper divisors (459425742687).

1211213321313 is a wasteful number, since it uses less digits than its factorization.

1211213321313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13921992231.

The product of its digits is 648, while the sum is 24.

Adding to 1211213321313 its reverse (3131233121121), we get a palindrome (4342446442434).

The spelling of 1211213321313 in words is "one trillion, two hundred eleven billion, two hundred thirteen million, three hundred twenty-one thousand, three hundred thirteen".