101213231 has 8 divisors (see below), whose sum is σ = 118133760. Its totient is φ = 84908088.

The previous prime is 101213227. The next prime is 101213237. The reversal of 101213231 is 132312101.

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 101213231 - 2² = 101213227 is a prime.

It is a super-2 number, since 2×101213231² = 20488236258918722, 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 (101213237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153491 + ... + 154148.

It is an arithmetic number, because the mean of its divisors is an integer number (14766720).

Almost surely, 2^101213231 is an apocalyptic number.

101213231 is a deficient number, since it is larger than the sum of its proper divisors (16920529).

101213231 is an equidigital number, since it uses as much as digits as its factorization.

101213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307693.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 101213231 is about 10060.4786665446. The cubic root of 101213231 is about 466.0284493920.

Adding to 101213231 its reverse (132312101), we get a palindrome (233525332).

The spelling of 101213231 in words is "one hundred one million, two hundred thirteen thousand, two hundred thirty-one".