120920543 has 2 divisors, whose sum is σ = 120920544. Its totient is φ = 120920542.

The previous prime is 120920539. The next prime is 120920549. The reversal of 120920543 is 345029021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120920543 - 2² = 120920539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120920549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60460271 + 60460272.

It is an arithmetic number, because the mean of its divisors is an integer number (60460272).

Almost surely, 2^120920543 is an apocalyptic number.

120920543 is a deficient number, since it is larger than the sum of its proper divisors (1).

120920543 is an equidigital number, since it uses as much as digits as its factorization.

120920543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 120920543 is about 10996.3877250668. The cubic root of 120920543 is about 494.5004558055.

Adding to 120920543 its reverse (345029021), we get a palindrome (465949564).

The spelling of 120920543 in words is "one hundred twenty million, nine hundred twenty thousand, five hundred forty-three".