120873733549 has 2 divisors, whose sum is σ = 120873733550. Its totient is φ = 120873733548.

The previous prime is 120873733543. The next prime is 120873733571. The reversal of 120873733549 is 945337378021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111451148649 + 9422584900 = 333843^2 + 97070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120873733549 is a prime.

It is a super-2 number, since 2×120873733549² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120873733496 and 120873733505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120873733543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60436866774 + 60436866775.

It is an arithmetic number, because the mean of its divisors is an integer number (60436866775).

Almost surely, 2^120873733549 is an apocalyptic number.

It is an amenable number.

120873733549 is a deficient number, since it is larger than the sum of its proper divisors (1).

120873733549 is an equidigital number, since it uses as much as digits as its factorization.

120873733549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 120873733549 in words is "one hundred twenty billion, eight hundred seventy-three million, seven hundred thirty-three thousand, five hundred forty-nine".