3121311211023 has 8 divisors (see below), whose sum is σ = 4173537937968. Its totient is φ = 2074979312384.

The previous prime is 3121311210949. The next prime is 3121311211049. The reversal of 3121311211023 is 3201121131213.

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 3121311211023 - 2⁸ = 3121311210767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121311211063) 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, 1473705840 + ... + 1473707957.

It is an arithmetic number, because the mean of its divisors is an integer number (521692242246).

Almost surely, 2^{3121311211023} is an apocalyptic number.

3121311211023 is a deficient number, since it is larger than the sum of its proper divisors (1052226726945).

3121311211023 is a wasteful number, since it uses less digits than its factorization.

3121311211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947414153.

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

Adding to 3121311211023 its reverse (3201121131213), we get a palindrome (6322432342236).

The spelling of 3121311211023 in words is "three trillion, one hundred twenty-one billion, three hundred eleven million, two hundred eleven thousand, twenty-three".