405132105101 has 4 divisors (see below), whose sum is σ = 405162586332. Its totient is φ = 405101623872.

The previous prime is 405132105071. The next prime is 405132105143. The reversal of 405132105101 is 101501231504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125001138025 + 280130967076 = 353555^2 + 529274^2 .

It is a cyclic number.

It is not a de Polignac number, because 405132105101 - 2¹⁸ = 405131842957 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 (405132105601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15220670 + ... + 15247263.

It is an arithmetic number, because the mean of its divisors is an integer number (101290646583).

Almost surely, 2^405132105101 is an apocalyptic number.

It is an amenable number.

405132105101 is a deficient number, since it is larger than the sum of its proper divisors (30481231).

405132105101 is a wasteful number, since it uses less digits than its factorization.

405132105101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30481230.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 405132105101 its reverse (101501231504), we get a palindrome (506633336605).

The spelling of 405132105101 in words is "four hundred five billion, one hundred thirty-two million, one hundred five thousand, one hundred one".