120857478277511 has 2 divisors, whose sum is σ = 120857478277512. Its totient is φ = 120857478277510.

The previous prime is 120857478277469. The next prime is 120857478277537. The reversal of 120857478277511 is 115772874758021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120857478277511 - 2¹⁰ = 120857478276487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120857478277541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60428739138755 + 60428739138756.

It is an arithmetic number, because the mean of its divisors is an integer number (60428739138756).

Almost surely, 2^{120857478277511} is an apocalyptic number.

120857478277511 is a deficient number, since it is larger than the sum of its proper divisors (1).

120857478277511 is an equidigital number, since it uses as much as digits as its factorization.

120857478277511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61465600, while the sum is 65.

The spelling of 120857478277511 in words is "one hundred twenty trillion, eight hundred fifty-seven billion, four hundred seventy-eight million, two hundred seventy-seven thousand, five hundred eleven".