120783634249 has 2 divisors, whose sum is σ = 120783634250. Its totient is φ = 120783634248.

The previous prime is 120783634207. The next prime is 120783634289. The reversal of 120783634249 is 942436387021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118822915849 + 1960718400 = 344707^2 + 44280^2 .

It is a cyclic number.

It is not a de Polignac number, because 120783634249 - 2¹⁹ = 120783109961 is a prime.

It is not a weakly prime, because it can be changed into another prime (120783634289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60391817124 + 60391817125.

It is an arithmetic number, because the mean of its divisors is an integer number (60391817125).

Almost surely, 2^120783634249 is an apocalyptic number.

It is an amenable number.

120783634249 is a deficient number, since it is larger than the sum of its proper divisors (1).

120783634249 is an equidigital number, since it uses as much as digits as its factorization.

120783634249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 120783634249 in words is "one hundred twenty billion, seven hundred eighty-three million, six hundred thirty-four thousand, two hundred forty-nine".