1311349011 has 32 divisors (see below), whose sum is σ = 2171289600. Its totient is φ = 686996640.

The previous prime is 1311349007. The next prime is 1311349019. The reversal of 1311349011 is 1109431131.

It is not a de Polignac number, because 1311349011 - 2² = 1311349007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311349019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40641 + ... + 65378.

It is an arithmetic number, because the mean of its divisors is an integer number (67852800).

Almost surely, 2^1311349011 is an apocalyptic number.

1311349011 is a deficient number, since it is larger than the sum of its proper divisors (859940589).

1311349011 is a wasteful number, since it uses less digits than its factorization.

1311349011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106079.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1311349011 is about 36212.5532239857. The cubic root of 1311349011 is about 1094.5596419518.

The spelling of 1311349011 in words is "one billion, three hundred eleven million, three hundred forty-nine thousand, eleven".