4021401340403 has 2 divisors, whose sum is σ = 4021401340404. Its totient is φ = 4021401340402.

The previous prime is 4021401340399. The next prime is 4021401340447. The reversal of 4021401340403 is 3040431041204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4021401340403 - 2² = 4021401340399 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021401300403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010700670201 + 2010700670202.

It is an arithmetic number, because the mean of its divisors is an integer number (2010700670202).

Almost surely, 2^{4021401340403} is an apocalyptic number.

4021401340403 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021401340403 is an equidigital number, since it uses as much as digits as its factorization.

4021401340403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 4021401340403 its reverse (3040431041204), we get a palindrome (7061832381607).

The spelling of 4021401340403 in words is "four trillion, twenty-one billion, four hundred one million, three hundred forty thousand, four hundred three".