120000405313 has 4 divisors (see below), whose sum is σ = 120498332548. Its totient is φ = 119502478080.

The previous prime is 120000405277. The next prime is 120000405353. The reversal of 120000405313 is 313504000021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313504000021 = 59 ⋅5313627119.

It can be written as a sum of positive squares in 2 ways, for example, as 66189396529 + 53811008784 = 257273^2 + 231972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120000405313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120000405353) 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, 248963256 + ... + 248963737.

It is an arithmetic number, because the mean of its divisors is an integer number (30124583137).

Almost surely, 2^120000405313 is an apocalyptic number.

It is an amenable number.

120000405313 is a deficient number, since it is larger than the sum of its proper divisors (497927235).

120000405313 is an equidigital number, since it uses as much as digits as its factorization.

120000405313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497927234.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 120000405313 its reverse (313504000021), we get a palindrome (433504405334).

The spelling of 120000405313 in words is "one hundred twenty billion, four hundred five thousand, three hundred thirteen".