120243534531 has 8 divisors (see below), whose sum is σ = 163042080960. Its totient is φ = 78803672232.

The previous prime is 120243534529. The next prime is 120243534559. The reversal of 120243534531 is 135435342021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120243534531 - 2¹ = 120243534529 is a prime.

It is a super-2 number, since 2×120243534531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120243534492 and 120243534501.

It is not an unprimeable number, because it can be changed into a prime (120243538531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339670825 + ... + 339671178.

It is an arithmetic number, because the mean of its divisors is an integer number (20380260120).

Almost surely, 2^120243534531 is an apocalyptic number.

120243534531 is a deficient number, since it is larger than the sum of its proper divisors (42798546429).

120243534531 is an equidigital number, since it uses as much as digits as its factorization.

120243534531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679342065.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 120243534531 its reverse (135435342021), we get a palindrome (255678876552).

The spelling of 120243534531 in words is "one hundred twenty billion, two hundred forty-three million, five hundred thirty-four thousand, five hundred thirty-one".