1111013265 has 16 divisors (see below), whose sum is σ = 1795949568. Its totient is φ = 586430976.

The previous prime is 1111013263. The next prime is 1111013269. The reversal of 1111013265 is 5623101111.

It is a happy number.

It is not a de Polignac number, because 1111013265 - 2¹ = 1111013263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111013263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380337 + ... + 383246.

It is an arithmetic number, because the mean of its divisors is an integer number (112246848).

Almost surely, 2^1111013265 is an apocalyptic number.

1111013265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111013265 is a deficient number, since it is larger than the sum of its proper divisors (684936303).

1111013265 is an equidigital number, since it uses as much as digits as its factorization.

1111013265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763688.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1111013265 is about 33331.8656093535. The cubic root of 1111013265 is about 1035.7137646971.

Adding to 1111013265 its reverse (5623101111), we get a palindrome (6734114376).

The spelling of 1111013265 in words is "one billion, one hundred eleven million, thirteen thousand, two hundred sixty-five".