313444111000121 has 4 divisors (see below), whose sum is σ = 314158106697600. Its totient is φ = 312730115302644.

The previous prime is 313444111000109. The next prime is 313444111000127. The reversal of 313444111000121 is 121000111444313.

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 a de Polignac number, because none of the positive numbers 2^k-313444111000121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313444111000127) 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, 356997848081 + ... + 356997848958.

It is an arithmetic number, because the mean of its divisors is an integer number (78539526674400).

Almost surely, 2^{313444111000121} is an apocalyptic number.

It is an amenable number.

313444111000121 is a deficient number, since it is larger than the sum of its proper divisors (713995697479).

313444111000121 is an equidigital number, since it uses as much as digits as its factorization.

313444111000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713995697478.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 313444111000121 its reverse (121000111444313), we get a palindrome (434444222444434).

The spelling of 313444111000121 in words is "three hundred thirteen trillion, four hundred forty-four billion, one hundred eleven million, one hundred twenty-one", and thus it is an aban number.