101641231 has 4 divisors (see below), whose sum is σ = 101873200. Its totient is φ = 101409264.

The previous prime is 101641229. The next prime is 101641237. The reversal of 101641231 is 132146101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101641231 - 2¹ = 101641229 is a prime.

It is a super-2 number, since 2×101641231² = 20661879678390722, 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 = 101641199 and 101641208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101641237) 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, 115326 + ... + 116203.

It is an arithmetic number, because the mean of its divisors is an integer number (25468300).

Almost surely, 2^101641231 is an apocalyptic number.

101641231 is a deficient number, since it is larger than the sum of its proper divisors (231969).

101641231 is an equidigital number, since it uses as much as digits as its factorization.

101641231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231968.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 101641231 is about 10081.7275801323. The cubic root of 101641231 is about 466.6844231906.

Adding to 101641231 its reverse (132146101), we get a palindrome (233787332).

The spelling of 101641231 in words is "one hundred one million, six hundred forty-one thousand, two hundred thirty-one".