1311443034 has 64 divisors (see below), whose sum is σ = 2969395200. Its totient is φ = 382536000.

The previous prime is 1311443027. The next prime is 1311443041. The reversal of 1311443034 is 4303441131.

It is an interprime number because it is at equal distance from previous prime (1311443027) and next prime (1311443041).

It is a junction number, because it is equal to n+sod(n) for n = 1311442995 and 1311443013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405544 + ... + 408764.

It is an arithmetic number, because the mean of its divisors is an integer number (46396800).

Almost surely, 2^1311443034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311443034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484697600).

1311443034 is an abundant number, since it is smaller than the sum of its proper divisors (1657952166).

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

1311443034 is a wasteful number, since it uses less digits than its factorization.

1311443034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1311443034 is about 36213.8514107517. The cubic root of 1311443034 is about 1094.5858011006.

Adding to 1311443034 its reverse (4303441131), we get a palindrome (5614884165).

The spelling of 1311443034 in words is "one billion, three hundred eleven million, four hundred forty-three thousand, thirty-four".