120105377657 has 2 divisors, whose sum is σ = 120105377658. Its totient is φ = 120105377656.

The previous prime is 120105377647. The next prime is 120105377671. The reversal of 120105377657 is 756773501021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117659976256 + 2445401401 = 343016^2 + 49451^2 .

It is a cyclic number.

It is not a de Polignac number, because 120105377657 - 2⁴ = 120105377641 is a prime.

It is not a weakly prime, because it can be changed into another prime (120105377647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60052688828 + 60052688829.

It is an arithmetic number, because the mean of its divisors is an integer number (60052688829).

Almost surely, 2^120105377657 is an apocalyptic number.

It is an amenable number.

120105377657 is a deficient number, since it is larger than the sum of its proper divisors (1).

120105377657 is an equidigital number, since it uses as much as digits as its factorization.

120105377657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 308700, while the sum is 44.

Adding to 120105377657 its reverse (756773501021), we get a palindrome (876878878678).

The spelling of 120105377657 in words is "one hundred twenty billion, one hundred five million, three hundred seventy-seven thousand, six hundred fifty-seven".