3124031142021 has 4 divisors (see below), whose sum is σ = 4165374856032. Its totient is φ = 2082687428012.

The previous prime is 3124031142013. The next prime is 3124031142031. The reversal of 3124031142021 is 1202411304213.

3124031142021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3124031142021 - 2³ = 3124031142013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3124031141982 and 3124031142000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3124031142031) 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, 520671857001 + ... + 520671857006.

It is an arithmetic number, because the mean of its divisors is an integer number (1041343714008).

Almost surely, 2^{3124031142021} is an apocalyptic number.

It is an amenable number.

3124031142021 is a deficient number, since it is larger than the sum of its proper divisors (1041343714011).

3124031142021 is a wasteful number, since it uses less digits than its factorization.

3124031142021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041343714010.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 3124031142021 its reverse (1202411304213), we get a palindrome (4326442446234).

The spelling of 3124031142021 in words is "three trillion, one hundred twenty-four billion, thirty-one million, one hundred forty-two thousand, twenty-one".