313011121 has 4 divisors (see below), whose sum is σ = 313087600. Its totient is φ = 312934644.

The previous prime is 313011119. The next prime is 313011137. The reversal of 313011121 is 121110313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313011121 - 2¹ = 313011119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313011521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31731 + ... + 40408.

It is an arithmetic number, because the mean of its divisors is an integer number (78271900).

Almost surely, 2^313011121 is an apocalyptic number.

It is an amenable number.

313011121 is a deficient number, since it is larger than the sum of its proper divisors (76479).

313011121 is an equidigital number, since it uses as much as digits as its factorization.

313011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76478.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 313011121 is about 17692.1203082050. The cubic root of 313011121 is about 678.9741748503.

Adding to 313011121 its reverse (121110313), we get a palindrome (434121434).

The spelling of 313011121 in words is "three hundred thirteen million, eleven thousand, one hundred twenty-one".