1361055611 has 2 divisors, whose sum is σ = 1361055612. Its totient is φ = 1361055610.

The previous prime is 1361055599. The next prime is 1361055617. The reversal of 1361055611 is 1165501631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1361055611 - 2²⁶ = 1293946747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361055617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680527805 + 680527806.

It is an arithmetic number, because the mean of its divisors is an integer number (680527806).

Almost surely, 2^1361055611 is an apocalyptic number.

1361055611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361055611 is an equidigital number, since it uses as much as digits as its factorization.

1361055611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 1361055611 is about 36892.4871891284. The cubic root of 1361055611 is about 1108.2182303643.

The spelling of 1361055611 in words is "one billion, three hundred sixty-one million, fifty-five thousand, six hundred eleven".