1311079342 has 16 divisors (see below), whose sum is σ = 2033407872. Its totient is φ = 633346560.

The previous prime is 1311079313. The next prime is 1311079351. The reversal of 1311079342 is 2439701131.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent 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, 21118 + ... + 55390.

It is an arithmetic number, because the mean of its divisors is an integer number (127087992).

Almost surely, 2^1311079342 is an apocalyptic number.

1311079342 is a deficient number, since it is larger than the sum of its proper divisors (722328530).

1311079342 is a wasteful number, since it uses less digits than its factorization.

1311079342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34923.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1311079342 is about 36208.8296137834. The cubic root of 1311079342 is about 1094.4846075059.

The spelling of 1311079342 in words is "one billion, three hundred eleven million, seventy-nine thousand, three hundred forty-two".