100015020405 has 16 divisors (see below), whose sum is σ = 177804480960. Its totient is φ = 53341344144.

The previous prime is 100015020367. The next prime is 100015020407. The reversal of 100015020405 is 504020510001.

It is not a de Polignac number, because 100015020405 - 2⁷ = 100015020277 is a prime.

It is a super-2 number, since 2×100015020405² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100015020407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370425867 + ... + 370426136.

It is an arithmetic number, because the mean of its divisors is an integer number (11112780060).

Almost surely, 2^100015020405 is an apocalyptic number.

100015020405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100015020405 is a deficient number, since it is larger than the sum of its proper divisors (77789460555).

100015020405 is an equidigital number, since it uses as much as digits as its factorization.

100015020405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740852017 (or 740852011 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

Adding to 100015020405 its reverse (504020510001), we get a palindrome (604035530406).

The spelling of 100015020405 in words is "one hundred billion, fifteen million, twenty thousand, four hundred five".