11530420613 has 2 divisors, whose sum is σ = 11530420614. Its totient is φ = 11530420612.

The previous prime is 11530420609. The next prime is 11530420703. The reversal of 11530420613 is 31602403511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10739798689 + 790621924 = 103633^2 + 28118^2 .

It is a cyclic number.

It is not a de Polignac number, because 11530420613 - 2² = 11530420609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11530440613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765210306 + 5765210307.

It is an arithmetic number, because the mean of its divisors is an integer number (5765210307).

Almost surely, 2^11530420613 is an apocalyptic number.

It is an amenable number.

11530420613 is a deficient number, since it is larger than the sum of its proper divisors (1).

11530420613 is an equidigital number, since it uses as much as digits as its factorization.

11530420613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 11530420613 in words is "eleven billion, five hundred thirty million, four hundred twenty thousand, six hundred thirteen".