1215031013 has 8 divisors (see below), whose sum is σ = 1397804160. Its totient is φ = 1034557200.

The previous prime is 1215030983. The next prime is 1215031039. The reversal of 1215031013 is 3101305121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215031013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1215030982 and 1215031000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215031043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573698 + ... + 575811.

It is an arithmetic number, because the mean of its divisors is an integer number (174725520).

Almost surely, 2^1215031013 is an apocalyptic number.

It is an amenable number.

1215031013 is a deficient number, since it is larger than the sum of its proper divisors (182773147).

1215031013 is a wasteful number, since it uses less digits than its factorization.

1215031013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149667.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1215031013 is about 34857.2949753707. The cubic root of 1215031013 is about 1067.0770702765.

Adding to 1215031013 its reverse (3101305121), we get a palindrome (4316336134).

The spelling of 1215031013 in words is "one billion, two hundred fifteen million, thirty-one thousand, thirteen".