120838981 has 2 divisors, whose sum is σ = 120838982. Its totient is φ = 120838980.

The previous prime is 120838973. The next prime is 120838997. The reversal of 120838981 is 189838021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106708900 + 14130081 = 10330^2 + 3759^2 .

It is a cyclic number.

It is not a de Polignac number, because 120838981 - 2³ = 120838973 is a prime.

It is a super-2 number, since 2×120838981² = 29204118658236722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120838681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60419490 + 60419491.

It is an arithmetic number, because the mean of its divisors is an integer number (60419491).

Almost surely, 2^120838981 is an apocalyptic number.

It is an amenable number.

120838981 is a deficient number, since it is larger than the sum of its proper divisors (1).

120838981 is an equidigital number, since it uses as much as digits as its factorization.

120838981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 120838981 is about 10992.6785179955. The cubic root of 120838981 is about 494.3892491217.

The spelling of 120838981 in words is "one hundred twenty million, eight hundred thirty-eight thousand, nine hundred eighty-one".