120511155503639 has 2 divisors, whose sum is σ = 120511155503640. Its totient is φ = 120511155503638.

The previous prime is 120511155503507. The next prime is 120511155503671. The reversal of 120511155503639 is 936305551115021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120511155503639 - 2²⁰ = 120511154455063 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 120511155503593 and 120511155503602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120511155503839) 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, 60255577751819 + 60255577751820.

It is an arithmetic number, because the mean of its divisors is an integer number (60255577751820).

Almost surely, 2^{120511155503639} is an apocalyptic number.

120511155503639 is a deficient number, since it is larger than the sum of its proper divisors (1).

120511155503639 is an equidigital number, since it uses as much as digits as its factorization.

120511155503639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 607500, while the sum is 47.

The spelling of 120511155503639 in words is "one hundred twenty trillion, five hundred eleven billion, one hundred fifty-five million, five hundred three thousand, six hundred thirty-nine".