1306201304261 has 32 divisors (see below), whose sum is σ = 1554251120640. Its totient is φ = 1074408192000.

The previous prime is 1306201304257. The next prime is 1306201304279. The reversal of 1306201304261 is 1624031026031.

It is a cyclic number.

It is not a de Polignac number, because 1306201304261 - 2² = 1306201304257 is a prime.

It is a super-2 number, since 2×1306201304261² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306201304251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9172796 + ... + 9314106.

It is an arithmetic number, because the mean of its divisors is an integer number (48570347520).

Almost surely, 2^{1306201304261} is an apocalyptic number.

It is an amenable number.

1306201304261 is a deficient number, since it is larger than the sum of its proper divisors (248049816379).

1306201304261 is a wasteful number, since it uses less digits than its factorization.

1306201304261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141845.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 1306201304261 in words is "one trillion, three hundred six billion, two hundred one million, three hundred four thousand, two hundred sixty-one".