100405141531 has 4 divisors (see below), whose sum is σ = 102854047464. Its totient is φ = 97956235600.

The previous prime is 100405141457. The next prime is 100405141567. The reversal of 100405141531 is 135141504001.

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

It is a cyclic number.

It is not a de Polignac number, because 100405141531 - 2¹⁵ = 100405108763 is a prime.

It is a super-2 number, since 2×100405141531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100405141496 and 100405141505.

It is not an unprimeable number, because it can be changed into a prime (100405141591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224452905 + ... + 1224452986.

It is an arithmetic number, because the mean of its divisors is an integer number (25713511866).

Almost surely, 2^100405141531 is an apocalyptic number.

100405141531 is a deficient number, since it is larger than the sum of its proper divisors (2448905933).

100405141531 is an equidigital number, since it uses as much as digits as its factorization.

100405141531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448905932.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 100405141531 its reverse (135141504001), we get a palindrome (235546645532).

The spelling of 100405141531 in words is "one hundred billion, four hundred five million, one hundred forty-one thousand, five hundred thirty-one".