3121110120817 has 8 divisors (see below), whose sum is σ = 3361318182656. Its totient is φ = 2880919582992.

The previous prime is 3121110120803. The next prime is 3121110120823. The reversal of 3121110120817 is 7180210111213.

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 3121110120817 - 2¹⁹ = 3121109596529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121110124817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4009923 + ... + 4724584.

It is an arithmetic number, because the mean of its divisors is an integer number (420164772832).

Almost surely, 2^{3121110120817} is an apocalyptic number.

It is an amenable number.

3121110120817 is a deficient number, since it is larger than the sum of its proper divisors (240208061839).

3121110120817 is a wasteful number, since it uses less digits than its factorization.

3121110120817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8762007.

The product of its (nonzero) digits is 672, while the sum is 28.

The spelling of 3121110120817 in words is "three trillion, one hundred twenty-one billion, one hundred ten million, one hundred twenty thousand, eight hundred seventeen".