100340231 has 4 divisors (see below), whose sum is σ = 101314512. Its totient is φ = 99365952.

The previous prime is 100340153. The next prime is 100340249. The reversal of 100340231 is 132043001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132043001 = 41 ⋅3220561.

It is a cyclic number.

It is not a de Polignac number, because 100340231 - 2¹⁰ = 100339207 is a prime.

It is a super-2 number, since 2×100340231² = 20136323914266722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100340281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486986 + ... + 487191.

It is an arithmetic number, because the mean of its divisors is an integer number (25328628).

Almost surely, 2^100340231 is an apocalyptic number.

100340231 is a deficient number, since it is larger than the sum of its proper divisors (974281).

100340231 is an equidigital number, since it uses as much as digits as its factorization.

100340231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974280.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 100340231 is about 10016.9971049212. The cubic root of 100340231 is about 464.6846916273.

Adding to 100340231 its reverse (132043001), we get a palindrome (232383232).

The spelling of 100340231 in words is "one hundred million, three hundred forty thousand, two hundred thirty-one".