1313018101 has 2 divisors, whose sum is σ = 1313018102. Its totient is φ = 1313018100.

The previous prime is 1313018087. The next prime is 1313018111. The reversal of 1313018101 is 1018103131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1181571876 + 131446225 = 34374^2 + 11465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313018101 - 2⁷ = 1313017973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313018111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656509050 + 656509051.

It is an arithmetic number, because the mean of its divisors is an integer number (656509051).

Almost surely, 2^1313018101 is an apocalyptic number.

It is an amenable number.

1313018101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313018101 is an equidigital number, since it uses as much as digits as its factorization.

1313018101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1313018101 is about 36235.5916330891. The cubic root of 1313018101 is about 1095.0238316227.

The spelling of 1313018101 in words is "one billion, three hundred thirteen million, eighteen thousand, one hundred one".