1213012015 has 8 divisors (see below), whose sum is σ = 1464331680. Its totient is φ = 964598112.

The previous prime is 1213012013. The next prime is 1213012037. The reversal of 1213012015 is 5102103121.

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 1213012015 - 2¹ = 1213012013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213012015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213012013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725520 + ... + 727189.

It is an arithmetic number, because the mean of its divisors is an integer number (183041460).

Almost surely, 2^1213012015 is an apocalyptic number.

1213012015 is a deficient number, since it is larger than the sum of its proper divisors (251319665).

1213012015 is a wasteful number, since it uses less digits than its factorization.

1213012015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452881.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1213012015 is about 34828.3220238931. The cubic root of 1213012015 is about 1066.4856941783.

Adding to 1213012015 its reverse (5102103121), we get a palindrome (6315115136).

The spelling of 1213012015 in words is "one billion, two hundred thirteen million, twelve thousand, fifteen".