1311131230 has 8 divisors (see below), whose sum is σ = 2360036232. Its totient is φ = 524452488.

The previous prime is 1311131221. The next prime is 1311131281. The reversal of 1311131230 is 321311131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65556552 + ... + 65556571.

It is an arithmetic number, because the mean of its divisors is an integer number (295004529).

Almost surely, 2^1311131230 is an apocalyptic number.

1311131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311131230 is a deficient number, since it is larger than the sum of its proper divisors (1048905002).

1311131230 is a wasteful number, since it uses less digits than its factorization.

1311131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131113130.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1311131230 is about 36209.5461170117. The cubic root of 1311131230 is about 1094.4990459578.

Adding to 1311131230 its reverse (321311131), we get a palindrome (1632442361).

The spelling of 1311131230 in words is "one billion, three hundred eleven million, one hundred thirty-one thousand, two hundred thirty".