1302311057 has 2 divisors, whose sum is σ = 1302311058. Its totient is φ = 1302311056.

The previous prime is 1302311041. The next prime is 1302311081. The reversal of 1302311057 is 7501132031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664041361 + 638269696 = 25769^2 + 25264^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302311057 - 2⁴ = 1302311041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1302311557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651155528 + 651155529.

It is an arithmetic number, because the mean of its divisors is an integer number (651155529).

Almost surely, 2^1302311057 is an apocalyptic number.

It is an amenable number.

1302311057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302311057 is an equidigital number, since it uses as much as digits as its factorization.

1302311057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1302311057 is about 36087.5471180849. The cubic root of 1302311057 is about 1092.0392363925.

Adding to 1302311057 its reverse (7501132031), we get a palindrome (8803443088).

The spelling of 1302311057 in words is "one billion, three hundred two million, three hundred eleven thousand, fifty-seven".