1213015113 has 12 divisors (see below), whose sum is σ = 1754500800. Its totient is φ = 807583896.

The previous prime is 1213015099. The next prime is 1213015117. The reversal of 1213015113 is 3115103121.

1213015113 is a `hidden beast` number, since 121 + 30 + 1 + 511 + 3 = 666.

It is not a de Polignac number, because 1213015113 - 2¹⁷ = 1212884041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1213015117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84013 + ... + 97386.

It is an arithmetic number, because the mean of its divisors is an integer number (146208400).

Almost surely, 2^1213015113 is an apocalyptic number.

It is an amenable number.

1213015113 is a deficient number, since it is larger than the sum of its proper divisors (541485687).

1213015113 is a wasteful number, since it uses less digits than its factorization.

1213015113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182148 (or 182145 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1213015113 is about 34828.3664991627. The cubic root of 1213015113 is about 1066.4866021027.

Adding to 1213015113 its reverse (3115103121), we get a palindrome (4328118234).

The spelling of 1213015113 in words is "one billion, two hundred thirteen million, fifteen thousand, one hundred thirteen".