1013021205 has 32 divisors (see below), whose sum is σ = 1882760448. Its totient is φ = 455500800.

The previous prime is 1013021203. The next prime is 1013021231. The reversal of 1013021205 is 5021203101.

1013021205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1013021205 - 2¹ = 1013021203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013021203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72676 + ... + 85485.

It is an arithmetic number, because the mean of its divisors is an integer number (58836264).

Almost surely, 2^1013021205 is an apocalyptic number.

1013021205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1013021205 is a deficient number, since it is larger than the sum of its proper divisors (869739243).

1013021205 is a wasteful number, since it uses less digits than its factorization.

1013021205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158237.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1013021205 is about 31827.9940461224. The cubic root of 1013021205 is about 1004.3216976902.

Adding to 1013021205 its reverse (5021203101), we get a palindrome (6034224306).

The spelling of 1013021205 in words is "one billion, thirteen million, twenty-one thousand, two hundred five".