11810535601 has 2 divisors, whose sum is σ = 11810535602. Its totient is φ = 11810535600.

The previous prime is 11810535587. The next prime is 11810535623. The reversal of 11810535601 is 10653501811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7573176576 + 4237359025 = 87024^2 + 65095^2 .

It is a cyclic number.

It is not a de Polignac number, because 11810535601 - 2¹³ = 11810527409 is a prime.

It is not a weakly prime, because it can be changed into another prime (11810535631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5905267800 + 5905267801.

It is an arithmetic number, because the mean of its divisors is an integer number (5905267801).

Almost surely, 2^11810535601 is an apocalyptic number.

It is an amenable number.

11810535601 is a deficient number, since it is larger than the sum of its proper divisors (1).

11810535601 is an equidigital number, since it uses as much as digits as its factorization.

11810535601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 11810535601 in words is "eleven billion, eight hundred ten million, five hundred thirty-five thousand, six hundred one".