1151111230 has 16 divisors (see below), whose sum is σ = 2096965584. Its totient is φ = 454896640.

The previous prime is 1151111209. The next prime is 1151111233. The reversal of 1151111230 is 321111511.

It is a happy number.

It is a super-2 number, since 2×1151111230² = 2650114127664225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151111233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692611 + ... + 694270.

It is an arithmetic number, because the mean of its divisors is an integer number (131060349).

Almost surely, 2^1151111230 is an apocalyptic number.

1151111230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151111230 is a deficient number, since it is larger than the sum of its proper divisors (945854354).

1151111230 is a wasteful number, since it uses less digits than its factorization.

1151111230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386971.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 1151111230 is about 33928.0301520734. The cubic root of 1151111230 is about 1048.0269007867.

Adding to 1151111230 its reverse (321111511), we get a palindrome (1472222741).

The spelling of 1151111230 in words is "one billion, one hundred fifty-one million, one hundred eleven thousand, two hundred thirty".