3123102310121 has 4 divisors (see below), whose sum is σ = 3123478913412. Its totient is φ = 3122725706832.

The previous prime is 3123102310109. The next prime is 3123102310123. The reversal of 3123102310121 is 1210132013213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 855560251225 + 2267542058896 = 924965^2 + 1505836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123102310121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3123102310093 and 3123102310102.

It is not an unprimeable number, because it can be changed into a prime (3123102310123) 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, 188289206 + ... + 188305791.

It is an arithmetic number, because the mean of its divisors is an integer number (780869728353).

Almost surely, 2^{3123102310121} is an apocalyptic number.

It is an amenable number.

3123102310121 is a deficient number, since it is larger than the sum of its proper divisors (376603291).

3123102310121 is an equidigital number, since it uses as much as digits as its factorization.

3123102310121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376603290.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3123102310121 its reverse (1210132013213), we get a palindrome (4333234323334).

The spelling of 3123102310121 in words is "three trillion, one hundred twenty-three billion, one hundred two million, three hundred ten thousand, one hundred twenty-one".