1319356811 has 2 divisors, whose sum is σ = 1319356812. Its totient is φ = 1319356810.

The previous prime is 1319356799. The next prime is 1319356823. The reversal of 1319356811 is 1186539131.

It is a balanced prime because it is at equal distance from previous prime (1319356799) and next prime (1319356823).

It is an emirp because it is prime and its reverse (1186539131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1319356811 - 2⁶ = 1319356747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1319356211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659678405 + 659678406.

It is an arithmetic number, because the mean of its divisors is an integer number (659678406).

Almost surely, 2^1319356811 is an apocalyptic number.

1319356811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1319356811 is an equidigital number, since it uses as much as digits as its factorization.

1319356811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 38.

The square root of 1319356811 is about 36322.9515733510. The cubic root of 1319356811 is about 1096.7831114773.

The spelling of 1319356811 in words is "one billion, three hundred nineteen million, three hundred fifty-six thousand, eight hundred eleven".