1111114521 has 24 divisors (see below), whose sum is σ = 1826974656. Its totient is φ = 644123040.

The previous prime is 1111114517. The next prime is 1111114549. The reversal of 1111114521 is 1254111111.

It is not a de Polignac number, because 1111114521 - 2² = 1111114517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111114494 and 1111114503.

It is not an unprimeable number, because it can be changed into a prime (1111114721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241710 + ... + 246263.

It is an arithmetic number, because the mean of its divisors is an integer number (76123944).

Almost surely, 2^1111114521 is an apocalyptic number.

1111114521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111114521 is a deficient number, since it is larger than the sum of its proper divisors (715860135).

1111114521 is a wasteful number, since it uses less digits than its factorization.

1111114521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488013 (or 488010 counting only the distinct ones).

The product of its digits is 40, while the sum is 18.

The square root of 1111114521 is about 33333.3844816274. The cubic root of 1111114521 is about 1035.7452281820.

Adding to 1111114521 its reverse (1254111111), we get a palindrome (2365225632).

The spelling of 1111114521 in words is "one billion, one hundred eleven million, one hundred fourteen thousand, five hundred twenty-one".