1131230456 has 16 divisors (see below), whose sum is σ = 2245825440. Its totient is φ = 532343680.

The previous prime is 1131230453. The next prime is 1131230491. The reversal of 1131230456 is 6540321311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131230453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4158800 + ... + 4159071.

It is an arithmetic number, because the mean of its divisors is an integer number (140364090).

Almost surely, 2^1131230456 is an apocalyptic number.

It is an amenable number.

1131230456 is a deficient number, since it is larger than the sum of its proper divisors (1114594984).

1131230456 is a wasteful number, since it uses less digits than its factorization.

1131230456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8317894 (or 8317890 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1131230456 is about 33633.7695776135. The cubic root of 1131230456 is about 1041.9583588391.

Adding to 1131230456 its reverse (6540321311), we get a palindrome (7671551767).

The spelling of 1131230456 in words is "one billion, one hundred thirty-one million, two hundred thirty thousand, four hundred fifty-six".