1308111340 has 24 divisors (see below), whose sum is σ = 2835649152. Its totient is φ = 506365440.

The previous prime is 1308111331. The next prime is 1308111341. The reversal of 1308111340 is 431118031.

It is a super-2 number, since 2×1308111340² = 3422310555673191200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1308111341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054309 + ... + 1055548.

It is an arithmetic number, because the mean of its divisors is an integer number (118152048).

Almost surely, 2^1308111340 is an apocalyptic number.

1308111340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1308111340 is an abundant number, since it is smaller than the sum of its proper divisors (1527537812).

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

1308111340 is a wasteful number, since it uses less digits than its factorization.

1308111340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109897 (or 2109895 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1308111340 is about 36167.8218863121. The cubic root of 1308111340 is about 1093.6580908239.

Adding to 1308111340 its reverse (431118031), we get a palindrome (1739229371).

The spelling of 1308111340 in words is "one billion, three hundred eight million, one hundred eleven thousand, three hundred forty".