1312544311 has 8 divisors (see below), whose sum is σ = 1440180000. Its totient is φ = 1188718752.

The previous prime is 1312544287. The next prime is 1312544353. The reversal of 1312544311 is 1134452131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312544311 - 2⁷ = 1312544183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312544911) by changing a digit.

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, 951811 + ... + 953188.

It is an arithmetic number, because the mean of its divisors is an integer number (180022500).

Almost surely, 2^1312544311 is an apocalyptic number.

1312544311 is a deficient number, since it is larger than the sum of its proper divisors (127635689).

1312544311 is a wasteful number, since it uses less digits than its factorization.

1312544311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905065.

The product of its digits is 1440, while the sum is 25.

The square root of 1312544311 is about 36229.0534102121. The cubic root of 1312544311 is about 1094.8921061586.

Adding to 1312544311 its reverse (1134452131), we get a palindrome (2446996442).

The spelling of 1312544311 in words is "one billion, three hundred twelve million, five hundred forty-four thousand, three hundred eleven".