313361115631 has 4 divisors (see below), whose sum is σ = 313741871152. Its totient is φ = 312980360112.

The previous prime is 313361115607. The next prime is 313361115647. The reversal of 313361115631 is 136511163313.

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

It is a cyclic number.

It is not a de Polignac number, because 313361115631 - 2³¹ = 311213631983 is a prime.

It is a super-2 number, since 2×313361115631² (a number of 24 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 (313361115031) 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 3 ways as a sum of consecutive naturals, for example, 190376526 + ... + 190378171.

It is an arithmetic number, because the mean of its divisors is an integer number (78435467788).

Almost surely, 2^313361115631 is an apocalyptic number.

313361115631 is a deficient number, since it is larger than the sum of its proper divisors (380755521).

313361115631 is an equidigital number, since it uses as much as digits as its factorization.

313361115631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380755520.

The product of its digits is 14580, while the sum is 34.

Adding to 313361115631 its reverse (136511163313), we get a palindrome (449872278944).

The spelling of 313361115631 in words is "three hundred thirteen billion, three hundred sixty-one million, one hundred fifteen thousand, six hundred thirty-one".