1331013018 has 32 divisors (see below), whose sum is σ = 2697463296. Its totient is φ = 437797808.

The previous prime is 1331013017. The next prime is 1331013077. The reversal of 1331013018 is 8103101331.

It is a junction number, because it is equal to n+sod(n) for n = 1331012985 and 1331013003.

It is not an unprimeable number, because it can be changed into a prime (1331013017) 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, 164905 + ... + 172787.

It is an arithmetic number, because the mean of its divisors is an integer number (84295728).

Almost surely, 2^1331013018 is an apocalyptic number.

1331013018 is an abundant number, since it is smaller than the sum of its proper divisors (1366450278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331013018 is a wasteful number, since it uses less digits than its factorization.

1331013018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8258.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1331013018 is about 36483.0511059588. The cubic root of 1331013018 is about 1100.0035862142.

Adding to 1331013018 its reverse (8103101331), we get a palindrome (9434114349).

The spelling of 1331013018 in words is "one billion, three hundred thirty-one million, thirteen thousand, eighteen".