1311203230 has 16 divisors (see below), whose sum is σ = 2360579760. Its totient is φ = 524389312.

The previous prime is 1311203219. The next prime is 1311203273. The reversal of 1311203230 is 323021131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98301 + ... + 110839.

It is an arithmetic number, because the mean of its divisors is an integer number (147536235).

Almost surely, 2^1311203230 is an apocalyptic number.

1311203230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311203230 is a deficient number, since it is larger than the sum of its proper divisors (1049376530).

1311203230 is a wasteful number, since it uses less digits than its factorization.

1311203230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23003.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1311203230 is about 36210.5403163223. The cubic root of 1311203230 is about 1094.5190801815.

Adding to 1311203230 its reverse (323021131), we get a palindrome (1634224361).

The spelling of 1311203230 in words is "one billion, three hundred eleven million, two hundred three thousand, two hundred thirty".