1311440611206 has 64 divisors (see below), whose sum is σ = 2867418973440. Its totient is φ = 396560424960.

The previous prime is 1311440611183. The next prime is 1311440611219. The reversal of 1311440611206 is 6021160441131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127455310 + ... + 127465598.

It is an arithmetic number, because the mean of its divisors is an integer number (44803421460).

Almost surely, 2^{1311440611206} is an apocalyptic number.

1311440611206 is an abundant number, since it is smaller than the sum of its proper divisors (1555978362234).

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

1311440611206 is a wasteful number, since it uses less digits than its factorization.

1311440611206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14229.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 1311440611206 in words is "one trillion, three hundred eleven billion, four hundred forty million, six hundred eleven thousand, two hundred six".