101211231 has 8 divisors (see below), whose sum is σ = 147216384. Its totient is φ = 61340120.

The previous prime is 101211221. The next prime is 101211241. The reversal of 101211231 is 132112101.

It is an interprime number because it is at equal distance from previous prime (101211221) and next prime (101211241).

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

It is a cyclic number.

It is not a de Polignac number, because 101211231 - 2¹¹ = 101209183 is a prime.

It is a super-2 number, since 2×101211231² = 20487426561070722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211211) 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, 1533471 + ... + 1533536.

It is an arithmetic number, because the mean of its divisors is an integer number (18402048).

Almost surely, 2^101211231 is an apocalyptic number.

101211231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101211231 is a deficient number, since it is larger than the sum of its proper divisors (46005153).

101211231 is a wasteful number, since it uses less digits than its factorization.

101211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067021.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 101211231 is about 10060.3792672046. The cubic root of 101211231 is about 466.0253797569.

Adding to 101211231 its reverse (132112101), we get a palindrome (233323332).

The spelling of 101211231 in words is "one hundred one million, two hundred eleven thousand, two hundred thirty-one".