3121312101223 has 8 divisors (see below), whose sum is σ = 3146023591920. Its totient is φ = 3096614015040.

The previous prime is 3121312101211. The next prime is 3121312101293. The reversal of 3121312101223 is 3221012131213.

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 3121312101223 - 2³⁷ = 2983873147751 is a prime.

It is a super-2 number, since 2×3121312101223² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3121312101194 and 3121312101203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121312101293) 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, 2883318 + ... + 3815251.

It is an arithmetic number, because the mean of its divisors is an integer number (393252948990).

Almost surely, 2^{3121312101223} is an apocalyptic number.

3121312101223 is a deficient number, since it is larger than the sum of its proper divisors (24711490697).

3121312101223 is a wasteful number, since it uses less digits than its factorization.

3121312101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702257.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3121312101223 its reverse (3221012131213), we get a palindrome (6342324232436).

The spelling of 3121312101223 in words is "three trillion, one hundred twenty-one billion, three hundred twelve million, one hundred one thousand, two hundred twenty-three".