1308431071 has 2 divisors, whose sum is σ = 1308431072. Its totient is φ = 1308431070.

The previous prime is 1308431053. The next prime is 1308431147. The reversal of 1308431071 is 1701348031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1308431071 - 2¹³ = 1308422879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1308431011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654215535 + 654215536.

It is an arithmetic number, because the mean of its divisors is an integer number (654215536).

Almost surely, 2^1308431071 is an apocalyptic number.

1308431071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308431071 is an equidigital number, since it uses as much as digits as its factorization.

1308431071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1308431071 is about 36172.2417193074. The cubic root of 1308431071 is about 1093.7471882115.

The spelling of 1308431071 in words is "one billion, three hundred eight million, four hundred thirty-one thousand, seventy-one".