30505352261 has 2 divisors, whose sum is σ = 30505352262. Its totient is φ = 30505352260.

The previous prime is 30505352243. The next prime is 30505352281. The reversal of 30505352261 is 16225350503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18118775236 + 12386577025 = 134606^2 + 111295^2 .

It is a cyclic number.

It is not a de Polignac number, because 30505352261 - 2¹⁸ = 30505090117 is a prime.

It is a super-3 number, since 3×30505352261³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30505352231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15252676130 + 15252676131.

It is an arithmetic number, because the mean of its divisors is an integer number (15252676131).

Almost surely, 2^30505352261 is an apocalyptic number.

It is an amenable number.

30505352261 is a deficient number, since it is larger than the sum of its proper divisors (1).

30505352261 is an equidigital number, since it uses as much as digits as its factorization.

30505352261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 30505352261 in words is "thirty billion, five hundred five million, three hundred fifty-two thousand, two hundred sixty-one".