101001231 has 12 divisors (see below), whose sum is σ = 149834152. Its totient is φ = 65514096.

The previous prime is 101001217. The next prime is 101001331. The reversal of 101001231 is 132100101.

It is not a de Polignac number, because 101001231 - 2¹⁵ = 100968463 is a prime.

It is a super-2 number, since 2×101001231² = 20402497327030722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151321 + ... + 151986.

Almost surely, 2^101001231 is an apocalyptic number.

101001231 is a deficient number, since it is larger than the sum of its proper divisors (48832921).

101001231 is a wasteful number, since it uses less digits than its factorization.

101001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303350 (or 303347 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 101001231 is about 10049.9368654733. The cubic root of 101001231 is about 465.7028427789.

Adding to 101001231 its reverse (132100101), we get a palindrome (233101332).

The spelling of 101001231 in words is "one hundred one million, one thousand, two hundred thirty-one".