4355540021243 has 16 divisors (see below), whose sum is σ = 4482556024320. Its totient is φ = 4229702082144.

The previous prime is 4355540021221. The next prime is 4355540021251. The reversal of 4355540021243 is 3421200455534.

It is a cyclic number.

It is not a de Polignac number, because 4355540021243 - 2¹⁴ = 4355540004859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4355540021197 and 4355540021206.

It is not an unprimeable number, because it can be changed into a prime (4355540021263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44154605 + ... + 44253137.

It is an arithmetic number, because the mean of its divisors is an integer number (280159751520).

Almost surely, 2^{4355540021243} is an apocalyptic number.

4355540021243 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4355540021243 is a deficient number, since it is larger than the sum of its proper divisors (127016003077).

4355540021243 is a wasteful number, since it uses less digits than its factorization.

4355540021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104498.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 4355540021243 its reverse (3421200455534), we get a palindrome (7776740476777).

The spelling of 4355540021243 in words is "four trillion, three hundred fifty-five billion, five hundred forty million, twenty-one thousand, two hundred forty-three".