100268031 has 4 divisors (see below), whose sum is σ = 133690712. Its totient is φ = 66845352.

The previous prime is 100268029. The next prime is 100268059. The reversal of 100268031 is 130862001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130862001 = 3 ⋅43620667.

It is not a de Polignac number, because 100268031 - 2¹ = 100268029 is a prime.

It is a super-2 number, since 2×100268031² = 20107356081233922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100267989 and 100268007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100267031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16711336 + ... + 16711341.

It is an arithmetic number, because the mean of its divisors is an integer number (33422678).

Almost surely, 2^100268031 is an apocalyptic number.

100268031 is a deficient number, since it is larger than the sum of its proper divisors (33422681).

100268031 is an equidigital number, since it uses as much as digits as its factorization.

100268031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33422680.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 100268031 is about 10013.3925819375. The cubic root of 100268031 is about 464.5732099724.

The spelling of 100268031 in words is "one hundred million, two hundred sixty-eight thousand, thirty-one".