1113235521 has 16 divisors (see below), whose sum is σ = 1491243264. Its totient is φ = 738702224.

The previous prime is 1113235507. The next prime is 1113235523. The reversal of 1113235521 is 1255323111.

It is a cyclic number.

It is not a de Polignac number, because 1113235521 - 2⁹ = 1113235009 is a prime.

It is a super-2 number, since 2×1113235521² = 2478586650432282882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1113235491 and 1113235500.

It is not an unprimeable number, because it can be changed into a prime (1113235523) 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, 779410 + ... + 780836.

It is an arithmetic number, because the mean of its divisors is an integer number (93202704).

Almost surely, 2^1113235521 is an apocalyptic number.

It is an amenable number.

1113235521 is a deficient number, since it is larger than the sum of its proper divisors (378007743).

1113235521 is a wasteful number, since it uses less digits than its factorization.

1113235521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460.

The product of its digits is 900, while the sum is 24.

The square root of 1113235521 is about 33365.1842644395. The cubic root of 1113235521 is about 1036.4038519447.

Adding to 1113235521 its reverse (1255323111), we get a palindrome (2368558632).

The spelling of 1113235521 in words is "one billion, one hundred thirteen million, two hundred thirty-five thousand, five hundred twenty-one".