1265653310011 has 2 divisors, whose sum is σ = 1265653310012. Its totient is φ = 1265653310010.

The previous prime is 1265653309933. The next prime is 1265653310041. The reversal of 1265653310011 is 1100133565621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1265653310011 - 2²⁵ = 1265619755579 is a prime.

It is a super-2 number, since 2×1265653310011² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1265653310041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632826655005 + 632826655006.

It is an arithmetic number, because the mean of its divisors is an integer number (632826655006).

Almost surely, 2^{1265653310011} is an apocalyptic number.

1265653310011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265653310011 is an equidigital number, since it uses as much as digits as its factorization.

1265653310011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

Adding to 1265653310011 its reverse (1100133565621), we get a palindrome (2365786875632).

The spelling of 1265653310011 in words is "one trillion, two hundred sixty-five billion, six hundred fifty-three million, three hundred ten thousand, eleven".