120536319689 has 2 divisors, whose sum is σ = 120536319690. Its totient is φ = 120536319688.

The previous prime is 120536319677. The next prime is 120536319703. The reversal of 120536319689 is 986913635021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84100000000 + 36436319689 = 290000^2 + 190883^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120536319689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120536319689.

It is not a weakly prime, because it can be changed into another prime (120536318689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60268159844 + 60268159845.

It is an arithmetic number, because the mean of its divisors is an integer number (60268159845).

Almost surely, 2^120536319689 is an apocalyptic number.

It is an amenable number.

120536319689 is a deficient number, since it is larger than the sum of its proper divisors (1).

120536319689 is an equidigital number, since it uses as much as digits as its factorization.

120536319689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 120536319689 in words is "one hundred twenty billion, five hundred thirty-six million, three hundred nineteen thousand, six hundred eighty-nine".