1311379298 has 16 divisors (see below), whose sum is σ = 2038041600. Its totient is φ = 632188800.

The previous prime is 1311379283. The next prime is 1311379343. The reversal of 1311379298 is 8929731131.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22223 + ... + 55826.

It is an arithmetic number, because the mean of its divisors is an integer number (127377600).

Almost surely, 2^1311379298 is an apocalyptic number.

1311379298 is a deficient number, since it is larger than the sum of its proper divisors (726662302).

1311379298 is a wasteful number, since it uses less digits than its factorization.

1311379298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78353.

The product of its digits is 81648, while the sum is 44.

The square root of 1311379298 is about 36212.9714052852. The cubic root of 1311379298 is about 1094.5680685600.

The spelling of 1311379298 in words is "one billion, three hundred eleven million, three hundred seventy-nine thousand, two hundred ninety-eight".