120255992257 has 2 divisors, whose sum is σ = 120255992258. Its totient is φ = 120255992256.

The previous prime is 120255992243. The next prime is 120255992309. The reversal of 120255992257 is 752299552021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60563241216 + 59692751041 = 246096^2 + 244321^2 .

It is an emirp because it is prime and its reverse (752299552021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120255992257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120255992257.

It is not a weakly prime, because it can be changed into another prime (120255999257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60127996128 + 60127996129.

It is an arithmetic number, because the mean of its divisors is an integer number (60127996129).

Almost surely, 2^120255992257 is an apocalyptic number.

It is an amenable number.

120255992257 is a deficient number, since it is larger than the sum of its proper divisors (1).

120255992257 is an equidigital number, since it uses as much as digits as its factorization.

120255992257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 120255992257 in words is "one hundred twenty billion, two hundred fifty-five million, nine hundred ninety-two thousand, two hundred fifty-seven".