4031303021021 has 8 divisors (see below), whose sum is σ = 4129867657344. Its totient is φ = 3932957175840.

The previous prime is 4031303020963. The next prime is 4031303021033. The reversal of 4031303021021 is 1201203031304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4031303021021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4031303020984 and 4031303021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4031303023021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54660485 + ... + 54734186.

It is an arithmetic number, because the mean of its divisors is an integer number (516233457168).

Almost surely, 2^{4031303021021} is an apocalyptic number.

It is an amenable number.

4031303021021 is a deficient number, since it is larger than the sum of its proper divisors (98564636323).

4031303021021 is a wasteful number, since it uses less digits than its factorization.

4031303021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109395571.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 4031303021021 its reverse (1201203031304), we get a palindrome (5232506052325).

The spelling of 4031303021021 in words is "four trillion, thirty-one billion, three hundred three million, twenty-one thousand, twenty-one".