1311421350 has 48 divisors (see below), whose sum is σ = 3277200960. Its totient is φ = 347037600.

The previous prime is 1311421339. The next prime is 1311421369. The reversal of 1311421350 is 531241131.

It is a congruent number.

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, 13720 + ... + 53019.

It is an arithmetic number, because the mean of its divisors is an integer number (68275020).

Almost surely, 2^1311421350 is an apocalyptic number.

1311421350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311421350 is an abundant number, since it is smaller than the sum of its proper divisors (1965779610).

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

1311421350 is a wasteful number, since it uses less digits than its factorization.

1311421350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66885 (or 66880 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1311421350 is about 36213.5520213083. The cubic root of 1311421350 is about 1094.5797682730.

Adding to 1311421350 its reverse (531241131), we get a palindrome (1842662481).

The spelling of 1311421350 in words is "one billion, three hundred eleven million, four hundred twenty-one thousand, three hundred fifty".