11621061355523 has 2 divisors, whose sum is σ = 11621061355524. Its totient is φ = 11621061355522.

The previous prime is 11621061355513. The next prime is 11621061355529. The reversal of 11621061355523 is 32555316012611.

11621061355523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11621061355523 - 2⁶ = 11621061355459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11621061355529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810530677761 + 5810530677762.

It is an arithmetic number, because the mean of its divisors is an integer number (5810530677762).

Almost surely, 2^{11621061355523} is an apocalyptic number.

11621061355523 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621061355523 is an equidigital number, since it uses as much as digits as its factorization.

11621061355523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 11621061355523 in words is "eleven trillion, six hundred twenty-one billion, sixty-one million, three hundred fifty-five thousand, five hundred twenty-three".