1265217330213 has 8 divisors (see below), whose sum is σ = 1874396044800. Its totient is φ = 843478220124.

The previous prime is 1265217330173. The next prime is 1265217330217. The reversal of 1265217330213 is 3120337125621.

1265217330213 is a `hidden beast` number, since 1 + 26 + 521 + 73 + 30 + 2 + 13 = 666.

It is not a de Polignac number, because 1265217330213 - 2¹² = 1265217326117 is a prime.

It is a super-2 number, since 2×1265217330213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265217330217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23429950533 + ... + 23429950586.

It is an arithmetic number, because the mean of its divisors is an integer number (234299505600).

Almost surely, 2^{1265217330213} is an apocalyptic number.

It is an amenable number.

1265217330213 is a deficient number, since it is larger than the sum of its proper divisors (609178714587).

1265217330213 is an equidigital number, since it uses as much as digits as its factorization.

1265217330213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46859901128 (or 46859901122 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 1265217330213 in words is "one trillion, two hundred sixty-five billion, two hundred seventeen million, three hundred thirty thousand, two hundred thirteen".