1013111225 has 24 divisors (see below), whose sum is σ = 1442580288. Its totient is φ = 691387200.

The previous prime is 1013111213. The next prime is 1013111227. The reversal of 1013111225 is 5221113101.

It is not a de Polignac number, because 1013111225 - 2¹⁶ = 1013045689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013111227) 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 23 ways as a sum of consecutive naturals, for example, 23207 + ... + 50643.

It is an arithmetic number, because the mean of its divisors is an integer number (60107512).

Almost surely, 2^1013111225 is an apocalyptic number.

It is an amenable number.

1013111225 is a deficient number, since it is larger than the sum of its proper divisors (429469063).

1013111225 is a wasteful number, since it uses less digits than its factorization.

1013111225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27665 (or 27660 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1013111225 is about 31829.4081786011. The cubic root of 1013111225 is about 1004.3514457879.

Adding to 1013111225 its reverse (5221113101), we get a palindrome (6234224326).

The spelling of 1013111225 in words is "one billion, thirteen million, one hundred eleven thousand, two hundred twenty-five".