1296131711 has 4 divisors (see below), whose sum is σ = 1481293392. Its totient is φ = 1110970032.

The previous prime is 1296131699. The next prime is 1296131741. The reversal of 1296131711 is 1171316921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1296131711 - 2¹⁰ = 1296130687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296131741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92580830 + ... + 92580843.

It is an arithmetic number, because the mean of its divisors is an integer number (370323348).

Almost surely, 2^1296131711 is an apocalyptic number.

1296131711 is a deficient number, since it is larger than the sum of its proper divisors (185161681).

1296131711 is an equidigital number, since it uses as much as digits as its factorization.

1296131711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185161680.

The product of its digits is 2268, while the sum is 32.

The square root of 1296131711 is about 36001.8292729689. The cubic root of 1296131711 is about 1090.3092888263.

The spelling of 1296131711 in words is "one billion, two hundred ninety-six million, one hundred thirty-one thousand, seven hundred eleven".