10131211231 has 8 divisors (see below), whose sum is σ = 10167395360. Its totient is φ = 10095052032.

The previous prime is 10131211201. The next prime is 10131211249. The reversal of 10131211231 is 13211213101.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10131211231 is a prime.

It is a super-2 number, since 2×10131211231² (a number of 21 digits) 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 (10131211201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230055 + ... + 1238263.

It is an arithmetic number, because the mean of its divisors is an integer number (1270924420).

Almost surely, 2^10131211231 is an apocalyptic number.

10131211231 is a deficient number, since it is larger than the sum of its proper divisors (36184129).

10131211231 is an equidigital number, since it uses as much as digits as its factorization.

10131211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12465.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10131211231 its reverse (13211213101), we get a palindrome (23342424332).

The spelling of 10131211231 in words is "ten billion, one hundred thirty-one million, two hundred eleven thousand, two hundred thirty-one".