1013030521 has 8 divisors (see below), whose sum is σ = 1029246624. Its totient is φ = 996910080.

The previous prime is 1013030519. The next prime is 1013030533. The reversal of 1013030521 is 1250303101.

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 1013030521 - 2¹ = 1013030519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013030495 and 1013030504.

It is not an unprimeable number, because it can be changed into a prime (1013031521) 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, 2415 + ... + 45076.

It is an arithmetic number, because the mean of its divisors is an integer number (128655828).

Almost surely, 2^1013030521 is an apocalyptic number.

It is an amenable number.

1013030521 is a deficient number, since it is larger than the sum of its proper divisors (16216103).

1013030521 is an equidigital number, since it uses as much as digits as its factorization.

1013030521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47831.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1013030521 is about 31828.1403949398. The cubic root of 1013030521 is about 1004.3247763465.

Adding to 1013030521 its reverse (1250303101), we get a palindrome (2263333622).

The spelling of 1013030521 in words is "one billion, thirteen million, thirty thousand, five hundred twenty-one".