100125331 has 4 divisors (see below), whose sum is σ = 100145464. Its totient is φ = 100105200.

The previous prime is 100125323. The next prime is 100125353. The reversal of 100125331 is 133521001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133521001 = 6353 ⋅21017.

It is a cyclic number.

It is not a de Polignac number, because 100125331 - 2³ = 100125323 is a prime.

It is a super-2 number, since 2×100125331² = 20050163815719122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100125391) 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, 3391 + ... + 14551.

It is an arithmetic number, because the mean of its divisors is an integer number (25036366).

Almost surely, 2^100125331 is an apocalyptic number.

100125331 is a deficient number, since it is larger than the sum of its proper divisors (20133).

100125331 is an equidigital number, since it uses as much as digits as its factorization.

100125331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20132.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 100125331 is about 10006.2645877470. The cubic root of 100125331 is about 464.3527140639.

Adding to 100125331 its reverse (133521001), we get a palindrome (233646332).

The spelling of 100125331 in words is "one hundred million, one hundred twenty-five thousand, three hundred thirty-one".