2313121121103 has 8 divisors (see below), whose sum is σ = 3321404686768. Its totient is φ = 1423459151424.

The previous prime is 2313121121099. The next prime is 2313121121111. The reversal of 2313121121103 is 3011211213132.

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

It is not a de Polignac number, because 2313121121103 - 2² = 2313121121099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2313121121103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313121121123) 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, 29655398950 + ... + 29655399027.

It is an arithmetic number, because the mean of its divisors is an integer number (415175585846).

Almost surely, 2^{2313121121103} is an apocalyptic number.

2313121121103 is a deficient number, since it is larger than the sum of its proper divisors (1008283565665).

2313121121103 is a wasteful number, since it uses less digits than its factorization.

2313121121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59310797993.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2313121121103 its reverse (3011211213132), we get a palindrome (5324332334235).

The spelling of 2313121121103 in words is "two trillion, three hundred thirteen billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred three".