313111020121 has 8 divisors (see below), whose sum is σ = 315020924064. Its totient is φ = 311206896000.

The previous prime is 313111020067. The next prime is 313111020169. The reversal of 313111020121 is 121020111313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313111020121 - 2³⁷ = 175672066649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313111020095 and 313111020104.

It is not an unprimeable number, because it can be changed into a prime (313111020181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336255 + ... + 1552996.

It is an arithmetic number, because the mean of its divisors is an integer number (39377615508).

Almost surely, 2^313111020121 is an apocalyptic number.

It is an amenable number.

313111020121 is a deficient number, since it is larger than the sum of its proper divisors (1909903943).

313111020121 is a wasteful number, since it uses less digits than its factorization.

313111020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889911.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 313111020121 its reverse (121020111313), we get a palindrome (434131131434).

The spelling of 313111020121 in words is "three hundred thirteen billion, one hundred eleven million, twenty thousand, one hundred twenty-one".