1311006406 has 8 divisors (see below), whose sum is σ = 2014473384. Its totient is φ = 639515280.

The previous prime is 1311006341. The next prime is 1311006407. The reversal of 1311006406 is 6046001131.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311006407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7993860 + ... + 7994023.

It is an arithmetic number, because the mean of its divisors is an integer number (251809173).

Almost surely, 2^1311006406 is an apocalyptic number.

1311006406 is a deficient number, since it is larger than the sum of its proper divisors (703466978).

1311006406 is a wasteful number, since it uses less digits than its factorization.

1311006406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987926.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1311006406 is about 36207.8224421188. The cubic root of 1311006406 is about 1094.4643115540.

Adding to 1311006406 its reverse (6046001131), we get a palindrome (7357007537).

The spelling of 1311006406 in words is "one billion, three hundred eleven million, six thousand, four hundred six".