313128161351 has 4 divisors (see below), whose sum is σ = 314507580792. Its totient is φ = 311748741912.

The previous prime is 313128161341. The next prime is 313128161363. The reversal of 313128161351 is 153161821313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153161821313 = 328481 ⋅466273.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313128161351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313128161321) 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, 689709380 + ... + 689709833.

It is an arithmetic number, because the mean of its divisors is an integer number (78626895198).

Almost surely, 2^313128161351 is an apocalyptic number.

313128161351 is a deficient number, since it is larger than the sum of its proper divisors (1379419441).

313128161351 is a wasteful number, since it uses less digits than its factorization.

313128161351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379419440.

The product of its digits is 12960, while the sum is 35.

Adding to 313128161351 its reverse (153161821313), we get a palindrome (466289982664).

The spelling of 313128161351 in words is "three hundred thirteen billion, one hundred twenty-eight million, one hundred sixty-one thousand, three hundred fifty-one".