4021343123403 has 8 divisors (see below), whose sum is σ = 5486483641408. Its totient is φ = 2618549010504.

The previous prime is 4021343123401. The next prime is 4021343123407. The reversal of 4021343123403 is 3043213431204.

It is a happy number.

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

It is not a de Polignac number, because 4021343123403 - 2¹ = 4021343123401 is a prime.

It is a super-2 number, since 2×4021343123403² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021343123401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15586601125 + ... + 15586601382.

It is an arithmetic number, because the mean of its divisors is an integer number (685810455176).

Almost surely, 2^{4021343123403} is an apocalyptic number.

4021343123403 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4021343123403 is a deficient number, since it is larger than the sum of its proper divisors (1465140518005).

4021343123403 is a wasteful number, since it uses less digits than its factorization.

4021343123403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31173202553.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 4021343123403 its reverse (3043213431204), we get a palindrome (7064556554607).

The spelling of 4021343123403 in words is "four trillion, twenty-one billion, three hundred forty-three million, one hundred twenty-three thousand, four hundred three".