1213199013 has 8 divisors (see below), whose sum is σ = 1742029408. Its totient is φ = 746583984.

The previous prime is 1213198967. The next prime is 1213199027. The reversal of 1213199013 is 3109913121.

It is a happy number.

1213199013 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1213199013 - 2⁸ = 1213198757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213199093) 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, 15553795 + ... + 15553872.

It is an arithmetic number, because the mean of its divisors is an integer number (217753676).

Almost surely, 2^1213199013 is an apocalyptic number.

1213199013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1213199013 is a deficient number, since it is larger than the sum of its proper divisors (528830395).

1213199013 is a wasteful number, since it uses less digits than its factorization.

1213199013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31107683.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 1213199013 is about 34831.0064884723. The cubic root of 1213199013 is about 1066.5404945271.

The spelling of 1213199013 in words is "one billion, two hundred thirteen million, one hundred ninety-nine thousand, thirteen".