101421231 has 8 divisors (see below), whose sum is σ = 135278640. Its totient is φ = 67588992.

The previous prime is 101421209. The next prime is 101421233. The reversal of 101421231 is 132124101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101421231 - 2²³ = 93032623 is a prime.

It is a super-2 number, since 2×101421231² = 20572532195110722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101421231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7321 + ... + 16013.

It is an arithmetic number, because the mean of its divisors is an integer number (16909830).

Almost surely, 2^101421231 is an apocalyptic number.

101421231 is a deficient number, since it is larger than the sum of its proper divisors (33857409).

101421231 is an equidigital number, since it uses as much as digits as its factorization.

101421231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12585.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 101421231 is about 10070.8108412382. The cubic root of 101421231 is about 466.3474708951.

Adding to 101421231 its reverse (132124101), we get a palindrome (233545332).

It can be divided in two parts, 10 and 1421231, that added together give a palindrome (1421241).

The spelling of 101421231 in words is "one hundred one million, four hundred twenty-one thousand, two hundred thirty-one".