3123142321 has 8 divisors (see below), whose sum is σ = 3363877440. Its totient is φ = 2882477712.

The previous prime is 3123142307. The next prime is 3123142387. The reversal of 3123142321 is 1232413213.

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 3123142321 - 2¹³ = 3123134129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3123142292 and 3123142301.

It is not an unprimeable number, because it can be changed into a prime (3123142021) 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, 107106 + ... + 133108.

It is an arithmetic number, because the mean of its divisors is an integer number (420484680).

Almost surely, 2^3123142321 is an apocalyptic number.

It is an amenable number.

3123142321 is a deficient number, since it is larger than the sum of its proper divisors (240735119).

3123142321 is a wasteful number, since it uses less digits than its factorization.

3123142321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35255.

The product of its digits is 864, while the sum is 22.

The square root of 3123142321 is about 55885.0813813490. The cubic root of 3123142321 is about 1461.7191110774.

Adding to 3123142321 its reverse (1232413213), we get a palindrome (4355555534).

The spelling of 3123142321 in words is "three billion, one hundred twenty-three million, one hundred forty-two thousand, three hundred twenty-one".