120698665949 has 2 divisors, whose sum is σ = 120698665950. Its totient is φ = 120698665948.

The previous prime is 120698665877. The next prime is 120698665951. The reversal of 120698665949 is 949566896021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62155476100 + 58543189849 = 249310^2 + 241957^2 .

It is an emirp because it is prime and its reverse (949566896021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120698665949 - 2⁸ = 120698665693 is a prime.

Together with 120698665951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120698668949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60349332974 + 60349332975.

It is an arithmetic number, because the mean of its divisors is an integer number (60349332975).

Almost surely, 2^120698665949 is an apocalyptic number.

It is an amenable number.

120698665949 is a deficient number, since it is larger than the sum of its proper divisors (1).

120698665949 is an equidigital number, since it uses as much as digits as its factorization.

120698665949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50388480, while the sum is 65.

The spelling of 120698665949 in words is "one hundred twenty billion, six hundred ninety-eight million, six hundred sixty-five thousand, nine hundred forty-nine".