4131231231 has 8 divisors (see below), whose sum is σ = 5508881584. Its totient is φ = 2753867520.

The previous prime is 4131231229. The next prime is 4131231233. The reversal of 4131231231 is 1321321314.

It is an interprime number because it is at equal distance from previous prime (4131231229) and next prime (4131231233).

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

It is not a de Polignac number, because 4131231231 - 2¹ = 4131231229 is a prime.

It is a super-2 number, since 2×4131231231² = 34134142967979550722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4131231198 and 4131231207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131231233) 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, 35410 + ... + 97551.

It is an arithmetic number, because the mean of its divisors is an integer number (688610198).

Almost surely, 2^4131231231 is an apocalyptic number.

4131231231 is a deficient number, since it is larger than the sum of its proper divisors (1377650353).

4131231231 is a wasteful number, since it uses less digits than its factorization.

4131231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143321.

The product of its digits is 432, while the sum is 21.

The square root of 4131231231 is about 64274.6546548482. The cubic root of 4131231231 is about 1604.5743097136.

Adding to 4131231231 its reverse (1321321314), we get a palindrome (5452552545).

The spelling of 4131231231 in words is "four billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred thirty-one".