120231977 has 2 divisors, whose sum is σ = 120231978. Its totient is φ = 120231976.

The previous prime is 120231959. The next prime is 120231997. The reversal of 120231977 is 779132021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113976976 + 6255001 = 10676^2 + 2501^2 .

It is a cyclic number.

It is not a de Polignac number, because 120231977 - 2¹⁶ = 120166441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120231997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60115988 + 60115989.

It is an arithmetic number, because the mean of its divisors is an integer number (60115989).

Almost surely, 2^120231977 is an apocalyptic number.

It is an amenable number.

120231977 is a deficient number, since it is larger than the sum of its proper divisors (1).

120231977 is an equidigital number, since it uses as much as digits as its factorization.

120231977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 120231977 is about 10965.0342908721. The cubic root of 120231977 is about 493.5600460999.

Adding to 120231977 its reverse (779132021), we get a palindrome (899363998).

The spelling of 120231977 in words is "one hundred twenty million, two hundred thirty-one thousand, nine hundred seventy-seven".