1011291313 has 2 divisors, whose sum is σ = 1011291314. Its totient is φ = 1011291312.

The previous prime is 1011291293. The next prime is 1011291361. The reversal of 1011291313 is 3131921101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1004065969 + 7225344 = 31687^2 + 2688^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011291313 - 2⁹ = 1011290801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011291373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505645656 + 505645657.

It is an arithmetic number, because the mean of its divisors is an integer number (505645657).

Almost surely, 2^1011291313 is an apocalyptic number.

It is an amenable number.

1011291313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011291313 is an equidigital number, since it uses as much as digits as its factorization.

1011291313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1011291313 is about 31800.8067979415. The cubic root of 1011291313 is about 1003.7496932269.

The spelling of 1011291313 in words is "one billion, eleven million, two hundred ninety-one thousand, three hundred thirteen".