3203121322123 has 4 divisors (see below), whose sum is σ = 3221636474448. Its totient is φ = 3184606169800.

The previous prime is 3203121322111. The next prime is 3203121322147. The reversal of 3203121322123 is 3212231213023.

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

It is a cyclic number.

It is not a de Polignac number, because 3203121322123 - 2²¹ = 3203119224971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3203121302123) 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, 9257575903 + ... + 9257576248.

It is an arithmetic number, because the mean of its divisors is an integer number (805409118612).

Almost surely, 2^{3203121322123} is an apocalyptic number.

3203121322123 is a deficient number, since it is larger than the sum of its proper divisors (18515152325).

3203121322123 is a wasteful number, since it uses less digits than its factorization.

3203121322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18515152324.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3203121322123 its reverse (3212231213023), we get a palindrome (6415352535146).

The spelling of 3203121322123 in words is "three trillion, two hundred three billion, one hundred twenty-one million, three hundred twenty-two thousand, one hundred twenty-three".