1265653310041 has 2 divisors, whose sum is σ = 1265653310042. Its totient is φ = 1265653310040.

The previous prime is 1265653310011. The next prime is 1265653310099. The reversal of 1265653310041 is 1400133565621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 841879651600 + 423773658441 = 917540^2 + 650979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265653310041 - 2¹³ = 1265653301849 is a prime.

It is not a weakly prime, because it can be changed into another prime (1265653310011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632826655020 + 632826655021.

It is an arithmetic number, because the mean of its divisors is an integer number (632826655021).

Almost surely, 2^{1265653310041} is an apocalyptic number.

It is an amenable number.

1265653310041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265653310041 is an equidigital number, since it uses as much as digits as its factorization.

1265653310041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 1265653310041 its reverse (1400133565621), we get a palindrome (2665786875662).

The spelling of 1265653310041 in words is "one trillion, two hundred sixty-five billion, six hundred fifty-three million, three hundred ten thousand, forty-one".