313012120005 has 24 divisors (see below), whose sum is σ = 584289291768. Its totient is φ = 154098274176.

The previous prime is 313012119947. The next prime is 313012120009. The reversal of 313012120005 is 500021210313.

313012120005 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 112848129 + 312899271876 = 10623^2 + 559374^2 .

It is not a de Polignac number, because 313012120005 - 2¹⁶ = 313012054469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313012120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313012120009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267531142 + ... + 267532311.

It is an arithmetic number, because the mean of its divisors is an integer number (24345387157).

Almost surely, 2^313012120005 is an apocalyptic number.

It is an amenable number.

313012120005 is a deficient number, since it is larger than the sum of its proper divisors (271277171763).

313012120005 is a wasteful number, since it uses less digits than its factorization.

313012120005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535063477 (or 535063474 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 313012120005 its reverse (500021210313), we get a palindrome (813033330318).

The spelling of 313012120005 in words is "three hundred thirteen billion, twelve million, one hundred twenty thousand, five".