1213113313 has 8 divisors (see below), whose sum is σ = 1238357376. Its totient is φ = 1188096000.

The previous prime is 1213113299. The next prime is 1213113329. The reversal of 1213113313 is 3133113121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213113313 - 2⁵ = 1213113281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213113373) 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, 45856 + ... + 67297.

It is an arithmetic number, because the mean of its divisors is an integer number (154794672).

Almost surely, 2^1213113313 is an apocalyptic number.

It is an amenable number.

1213113313 is a deficient number, since it is larger than the sum of its proper divisors (25244063).

1213113313 is a wasteful number, since it uses less digits than its factorization.

1213113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113375.

The product of its digits is 162, while the sum is 19.

The square root of 1213113313 is about 34829.7762410269. The cubic root of 1213113313 is about 1066.5153805731.

Adding to 1213113313 its reverse (3133113121), we get a palindrome (4346226434).

The spelling of 1213113313 in words is "one billion, two hundred thirteen million, one hundred thirteen thousand, three hundred thirteen".