120005355511 has 2 divisors, whose sum is σ = 120005355512. Its totient is φ = 120005355510.

The previous prime is 120005355499. The next prime is 120005355521. The reversal of 120005355511 is 115553500021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120005355511 - 2⁹ = 120005354999 is a prime.

It is a super-2 number, since 2×120005355511² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120005355511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120005355521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60002677755 + 60002677756.

It is an arithmetic number, because the mean of its divisors is an integer number (60002677756).

Almost surely, 2^120005355511 is an apocalyptic number.

120005355511 is a deficient number, since it is larger than the sum of its proper divisors (1).

120005355511 is an equidigital number, since it uses as much as digits as its factorization.

120005355511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 120005355511 its reverse (115553500021), we get a palindrome (235558855532).

The spelling of 120005355511 in words is "one hundred twenty billion, five million, three hundred fifty-five thousand, five hundred eleven".