120353393857 has 2 divisors, whose sum is σ = 120353393858. Its totient is φ = 120353393856.

The previous prime is 120353393813. The next prime is 120353393879. The reversal of 120353393857 is 758393353021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118884281616 + 1469112241 = 344796^2 + 38329^2 .

It is a cyclic number.

It is not a de Polignac number, because 120353393857 - 2⁷ = 120353393729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120353393857.

It is not a weakly prime, because it can be changed into another prime (120353393887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60176696928 + 60176696929.

It is an arithmetic number, because the mean of its divisors is an integer number (60176696929).

Almost surely, 2^120353393857 is an apocalyptic number.

It is an amenable number.

120353393857 is a deficient number, since it is larger than the sum of its proper divisors (1).

120353393857 is an equidigital number, since it uses as much as digits as its factorization.

120353393857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 120353393857 in words is "one hundred twenty billion, three hundred fifty-three million, three hundred ninety-three thousand, eight hundred fifty-seven".