1111131530 has 16 divisors (see below), whose sum is σ = 2000458080. Its totient is φ = 444358992.

The previous prime is 1111131523. The next prime is 1111131557. The reversal of 1111131530 is 351311111.

It is a happy number.

It is a super-2 number, since 2×1111131530² = 2469226553920281800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1111131499 and 1111131508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57797 + ... + 74583.

It is an arithmetic number, because the mean of its divisors is an integer number (125028630).

Almost surely, 2^1111131530 is an apocalyptic number.

1111131530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111131530 is a deficient number, since it is larger than the sum of its proper divisors (889326550).

1111131530 is a wasteful number, since it uses less digits than its factorization.

1111131530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23413.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 1111131530 is about 33333.6396152595. The cubic root of 1111131530 is about 1035.7505132360.

Adding to 1111131530 its reverse (351311111), we get a palindrome (1462442641).

The spelling of 1111131530 in words is "one billion, one hundred eleven million, one hundred thirty-one thousand, five hundred thirty".