1331012518 has 32 divisors (see below), whose sum is σ = 2316625920. Its totient is φ = 566828160.

The previous prime is 1331012489. The next prime is 1331012519. The reversal of 1331012518 is 8152101331.

It is a junction number, because it is equal to n+sod(n) for n = 1331012492 and 1331012501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331012519) 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 15 ways as a sum of consecutive naturals, for example, 75423 + ... + 91381.

It is an arithmetic number, because the mean of its divisors is an integer number (72394560).

Almost surely, 2^1331012518 is an apocalyptic number.

1331012518 is a deficient number, since it is larger than the sum of its proper divisors (985613402).

1331012518 is a wasteful number, since it uses less digits than its factorization.

1331012518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16212.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1331012518 is about 36483.0442534611. The cubic root of 1331012518 is about 1100.0034484740.

Adding to 1331012518 its reverse (8152101331), we get a palindrome (9483113849).

The spelling of 1331012518 in words is "one billion, three hundred thirty-one million, twelve thousand, five hundred eighteen".