101231001231 has 8 divisors (see below), whose sum is σ = 135020605440. Its totient is φ = 67464365592.

The previous prime is 101231001203. The next prime is 101231001253. The reversal of 101231001231 is 132100132101.

It is a happy number.

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

It is not a de Polignac number, because 101231001231 - 2⁶ = 101231001167 is a prime.

It is a super-2 number, since 2×101231001231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101231001231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231001281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5731855 + ... + 5749488.

It is an arithmetic number, because the mean of its divisors is an integer number (16877575680).

Almost surely, 2^101231001231 is an apocalyptic number.

101231001231 is a deficient number, since it is larger than the sum of its proper divisors (33789604209).

101231001231 is a wasteful number, since it uses less digits than its factorization.

101231001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11484285.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 101231001231 its reverse (132100132101), we get a palindrome (233331133332).

The spelling of 101231001231 in words is "one hundred one billion, two hundred thirty-one million, one thousand, two hundred thirty-one".