120121201943 has 2 divisors, whose sum is σ = 120121201944. Its totient is φ = 120121201942.

The previous prime is 120121201939. The next prime is 120121202023. The reversal of 120121201943 is 349102121021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120121201943 - 2² = 120121201939 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120121201903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060600971 + 60060600972.

It is an arithmetic number, because the mean of its divisors is an integer number (60060600972).

Almost surely, 2^120121201943 is an apocalyptic number.

120121201943 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121201943 is an equidigital number, since it uses as much as digits as its factorization.

120121201943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 120121201943 its reverse (349102121021), we get a palindrome (469223322964).

The spelling of 120121201943 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred one thousand, nine hundred forty-three".