1350430261261 has 4 divisors (see below), whose sum is σ = 1351963100124. Its totient is φ = 1348897422400.

The previous prime is 1350430261237. The next prime is 1350430261273. The reversal of 1350430261261 is 1621620340531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 309142672036 + 1041287589225 = 556006^2 + 1020435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350430261261 - 2³³ = 1341840326669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350430261211) 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 3 ways as a sum of consecutive naturals, for example, 766418110 + ... + 766419871.

It is an arithmetic number, because the mean of its divisors is an integer number (337990775031).

Almost surely, 2^{1350430261261} is an apocalyptic number.

It is an amenable number.

1350430261261 is a deficient number, since it is larger than the sum of its proper divisors (1532838863).

1350430261261 is an equidigital number, since it uses as much as digits as its factorization.

1350430261261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532838862.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 1350430261261 in words is "one trillion, three hundred fifty billion, four hundred thirty million, two hundred sixty-one thousand, two hundred sixty-one".