120531355313 has 4 divisors (see below), whose sum is σ = 120834961140. Its totient is φ = 120227749488.

The previous prime is 120531355303. The next prime is 120531355331. The reversal of 120531355313 is 313553135021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 85000236304 + 35531119009 = 291548^2 + 188497^2 .

It is a cyclic number.

It is not a de Polignac number, because 120531355313 - 2¹⁸ = 120531093169 is a prime.

It is a super-2 number, since 2×120531355313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120531355313.

It is not an unprimeable number, because it can be changed into a prime (120531355303) 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, 151802318 + ... + 151803111.

It is an arithmetic number, because the mean of its divisors is an integer number (30208740285).

Almost surely, 2^120531355313 is an apocalyptic number.

It is an amenable number.

120531355313 is a deficient number, since it is larger than the sum of its proper divisors (303605827).

120531355313 is an equidigital number, since it uses as much as digits as its factorization.

120531355313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303605826.

The product of its (nonzero) digits is 20250, while the sum is 32.

The spelling of 120531355313 in words is "one hundred twenty billion, five hundred thirty-one million, three hundred fifty-five thousand, three hundred thirteen".