1013312202809 has 2 divisors, whose sum is σ = 1013312202810. Its totient is φ = 1013312202808.

The previous prime is 1013312202757. The next prime is 1013312202823. The reversal of 1013312202809 is 9082022133101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 987012445225 + 26299757584 = 993485^2 + 162172^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013312202809 - 2¹² = 1013312198713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1013312202209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506656101404 + 506656101405.

It is an arithmetic number, because the mean of its divisors is an integer number (506656101405).

Almost surely, 2^{1013312202809} is an apocalyptic number.

It is an amenable number.

1013312202809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013312202809 is an equidigital number, since it uses as much as digits as its factorization.

1013312202809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

It can be divided in two parts, 1013312 and 202809, that added together give a palindrome (1216121).

The spelling of 1013312202809 in words is "one trillion, thirteen billion, three hundred twelve million, two hundred two thousand, eight hundred nine".