3123342021 has 16 divisors (see below), whose sum is σ = 4315671360. Its totient is φ = 2006874240.

The previous prime is 3123342007. The next prime is 3123342067. The reversal of 3123342021 is 1202433213.

3123342021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3123342021 - 2¹⁵ = 3123309253 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123342071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18241 + ... + 81113.

It is an arithmetic number, because the mean of its divisors is an integer number (269729460).

Almost surely, 2^3123342021 is an apocalyptic number.

It is an amenable number.

3123342021 is a deficient number, since it is larger than the sum of its proper divisors (1192329339).

3123342021 is a wasteful number, since it uses less digits than its factorization.

3123342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63476.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3123342021 is about 55886.8680550270. The cubic root of 3123342021 is about 1461.7502654997.

Adding to 3123342021 its reverse (1202433213), we get a palindrome (4325775234).

The spelling of 3123342021 in words is "three billion, one hundred twenty-three million, three hundred forty-two thousand, twenty-one".