1311258330 has 48 divisors (see below), whose sum is σ = 3431885184. Its totient is φ = 347349600.

The previous prime is 1311258329. The next prime is 1311258341. The reversal of 1311258330 is 338521131.

It is a junction number, because it is equal to n+sod(n) for n = 1311258294 and 1311258303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34654 + ... + 61833.

It is an arithmetic number, because the mean of its divisors is an integer number (71497608).

Almost surely, 2^1311258330 is an apocalyptic number.

1311258330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311258330 is an abundant number, since it is smaller than the sum of its proper divisors (2120626854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311258330 is a wasteful number, since it uses less digits than its factorization.

1311258330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96651 (or 96648 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1311258330 is about 36211.3011365237. The cubic root of 1311258330 is about 1094.5344114322.

Adding to 1311258330 its reverse (338521131), we get a palindrome (1649779461).

The spelling of 1311258330 in words is "one billion, three hundred eleven million, two hundred fifty-eight thousand, three hundred thirty".