405542141023 has 16 divisors (see below), whose sum is σ = 427552091136. Its totient is φ = 383900378400.

The previous prime is 405542141021. The next prime is 405542141029. The reversal of 405542141023 is 320141245504.

It is not a de Polignac number, because 405542141023 - 2¹ = 405542141021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405542141021) 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, 5414890 + ... + 5489272.

It is an arithmetic number, because the mean of its divisors is an integer number (26722005696).

Almost surely, 2^405542141023 is an apocalyptic number.

405542141023 is a deficient number, since it is larger than the sum of its proper divisors (22009950113).

405542141023 is a wasteful number, since it uses less digits than its factorization.

405542141023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76854.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 405542141023 its reverse (320141245504), we get a palindrome (725683386527).

The spelling of 405542141023 in words is "four hundred five billion, five hundred forty-two million, one hundred forty-one thousand, twenty-three".