1130265521 has 16 divisors (see below), whose sum is σ = 1483330560. Its totient is φ = 834371280.

The previous prime is 1130265473. The next prime is 1130265527. The reversal of 1130265521 is 1255620311.

It is a cyclic number.

It is not a de Polignac number, because 1130265521 - 2¹⁰ = 1130264497 is a prime.

It is a super-2 number, since 2×1130265521² = 2555000295922802882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1130265527) 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, 384821 + ... + 387746.

It is an arithmetic number, because the mean of its divisors is an integer number (92708160).

Almost surely, 2^1130265521 is an apocalyptic number.

1130265521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1130265521 is a deficient number, since it is larger than the sum of its proper divisors (353065039).

1130265521 is a wasteful number, since it uses less digits than its factorization.

1130265521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772604.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1130265521 is about 33619.4217826541. The cubic root of 1130265521 is about 1041.6620124748.

Adding to 1130265521 its reverse (1255620311), we get a palindrome (2385885832).

The spelling of 1130265521 in words is "one billion, one hundred thirty million, two hundred sixty-five thousand, five hundred twenty-one".