3121101101023 has 4 divisors (see below), whose sum is σ = 3125837218680. Its totient is φ = 3116364983368.

The previous prime is 3121101101003. The next prime is 3121101101039. The reversal of 3121101101023 is 3201011011213.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121101101023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3121101100988 and 3121101101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121101101003) 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, 2368057840 + ... + 2368059157.

It is an arithmetic number, because the mean of its divisors is an integer number (781459304670).

Almost surely, 2^{3121101101023} is an apocalyptic number.

3121101101023 is a deficient number, since it is larger than the sum of its proper divisors (4736117657).

3121101101023 is an equidigital number, since it uses as much as digits as its factorization.

3121101101023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736117656.

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

Adding to 3121101101023 its reverse (3201011011213), we get a palindrome (6322112112236).

The spelling of 3121101101023 in words is "three trillion, one hundred twenty-one billion, one hundred one million, one hundred one thousand, twenty-three".