4021310423421 has 48 divisors (see below), whose sum is σ = 6193552135680. Its totient is φ = 2508340285440.

The previous prime is 4021310423419. The next prime is 4021310423477. The reversal of 4021310423421 is 1243240131204.

4021310423421 is a `hidden beast` number, since 4 + 0 + 2 + 1 + 310 + 4 + 2 + 342 + 1 = 666.

It is not a de Polignac number, because 4021310423421 - 2¹ = 4021310423419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021310423411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17289661 + ... + 17520701.

It is an arithmetic number, because the mean of its divisors is an integer number (129032336160).

Almost surely, 2^{4021310423421} is an apocalyptic number.

It is an amenable number.

4021310423421 is a deficient number, since it is larger than the sum of its proper divisors (2172241712259).

4021310423421 is a wasteful number, since it uses less digits than its factorization.

4021310423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232906 (or 232903 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 4021310423421 its reverse (1243240131204), we get a palindrome (5264550554625).

The spelling of 4021310423421 in words is "four trillion, twenty-one billion, three hundred ten million, four hundred twenty-three thousand, four hundred twenty-one".