1013021005 has 8 divisors (see below), whose sum is σ = 1279605600. Its totient is φ = 767763216.

The previous prime is 1013021003. The next prime is 1013021021. The reversal of 1013021005 is 5001203101.

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 1013021005 - 2¹ = 1013021003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013021003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5331595 + ... + 5331784.

It is an arithmetic number, because the mean of its divisors is an integer number (159950700).

Almost surely, 2^1013021005 is an apocalyptic number.

It is an amenable number.

1013021005 is a deficient number, since it is larger than the sum of its proper divisors (266584595).

1013021005 is a wasteful number, since it uses less digits than its factorization.

1013021005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663403.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1013021005 is about 31827.9909042340. The cubic root of 1013021005 is about 1004.3216315960.

Adding to 1013021005 its reverse (5001203101), we get a palindrome (6014224106).

The spelling of 1013021005 in words is "one billion, thirteen million, twenty-one thousand, five".