3123203013321 has 32 divisors (see below), whose sum is σ = 4553637419520. Its totient is φ = 1896411703296.

The previous prime is 3123203013313. The next prime is 3123203013401. The reversal of 3123203013321 is 1233103023213.

It is not a de Polignac number, because 3123203013321 - 2³ = 3123203013313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3123203013291 and 3123203013300.

It is not an unprimeable number, because it can be changed into a prime (3123203013521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7106686 + ... + 7533351.

It is an arithmetic number, because the mean of its divisors is an integer number (142301169360).

Almost surely, 2^{3123203013321} is an apocalyptic number.

It is an amenable number.

3123203013321 is a deficient number, since it is larger than the sum of its proper divisors (1430434406199).

3123203013321 is a wasteful number, since it uses less digits than its factorization.

3123203013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14640193.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 3123203013321 its reverse (1233103023213), we get a palindrome (4356306036534).

The spelling of 3123203013321 in words is "three trillion, one hundred twenty-three billion, two hundred three million, thirteen thousand, three hundred twenty-one".