10231231 has 4 divisors (see below), whose sum is σ = 10309464. Its totient is φ = 10153000.

The previous prime is 10231201. The next prime is 10231237. The reversal of 10231231 is 13213201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10231231 is a prime.

It is a super-2 number, since 2×10231231² = 209356175550722, 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 (10231237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38920 + ... + 39181.

It is an arithmetic number, because the mean of its divisors is an integer number (2577366).

Almost surely, 2^10231231 is an apocalyptic number.

10231231 is a deficient number, since it is larger than the sum of its proper divisors (78233).

10231231 is an equidigital number, since it uses as much as digits as its factorization.

10231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78232.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 10231231 is about 3198.6295502918. The cubic root of 10231231 is about 217.0914053542.

Adding to 10231231 its reverse (13213201), we get a palindrome (23444432).

The spelling of 10231231 in words is "ten million, two hundred thirty-one thousand, two hundred thirty-one".