313121200311 has 20 divisors (see below), whose sum is σ = 482837633344. Its totient is φ = 202013676000.

The previous prime is 313121200309. The next prime is 313121200349. The reversal of 313121200311 is 113002121313.

313121200311 is a `hidden beast` number, since 3 + 131 + 21 + 200 + 311 = 666.

It is not a de Polignac number, because 313121200311 - 2¹ = 313121200309 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 (313121200361) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62347390 + ... + 62352411.

Almost surely, 2^313121200311 is an apocalyptic number.

313121200311 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

313121200311 is a deficient number, since it is larger than the sum of its proper divisors (169716433033).

313121200311 is a wasteful number, since it uses less digits than its factorization.

313121200311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124699844 (or 124699835 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 313121200311 its reverse (113002121313), we get a palindrome (426123321624).

The spelling of 313121200311 in words is "three hundred thirteen billion, one hundred twenty-one million, two hundred thousand, three hundred eleven".