100231005 has 32 divisors (see below), whose sum is σ = 183859200. Its totient is φ = 45675072.

The previous prime is 100230961. The next prime is 100231007. The reversal of 100231005 is 500132001.

It is not a de Polignac number, because 100231005 - 2¹² = 100226909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36366 + ... + 39024.

It is an arithmetic number, because the mean of its divisors is an integer number (5745600).

Almost surely, 2^100231005 is an apocalyptic number.

100231005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100231005 is a deficient number, since it is larger than the sum of its proper divisors (83628195).

100231005 is a wasteful number, since it uses less digits than its factorization.

100231005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 100231005 is about 10011.5435872796. The cubic root of 100231005 is about 464.5160185784.

Adding to 100231005 its reverse (500132001), we get a palindrome (600363006).

The spelling of 100231005 in words is "one hundred million, two hundred thirty-one thousand, five".