120242121343 has 4 divisors (see below), whose sum is σ = 120667005448. Its totient is φ = 119817237240.

The previous prime is 120242121313. The next prime is 120242121361. The reversal of 120242121343 is 343121242021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120242121343 is a prime.

It is a super-2 number, since 2×120242121343² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120242121313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212441628 + ... + 212442193.

It is an arithmetic number, because the mean of its divisors is an integer number (30166751362).

Almost surely, 2^120242121343 is an apocalyptic number.

120242121343 is a deficient number, since it is larger than the sum of its proper divisors (424884105).

120242121343 is an equidigital number, since it uses as much as digits as its factorization.

120242121343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424884104.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 120242121343 its reverse (343121242021), we get a palindrome (463363363364).

The spelling of 120242121343 in words is "one hundred twenty billion, two hundred forty-two million, one hundred twenty-one thousand, three hundred forty-three".