4231313131 has 4 divisors (see below), whose sum is σ = 4237734600. Its totient is φ = 4224891664.

The previous prime is 4231313117. The next prime is 4231313161. The reversal of 4231313131 is 1313131324.

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

It is a cyclic number.

It is not a de Polignac number, because 4231313131 - 2²⁷ = 4097095403 is a prime.

It is a super-2 number, since 2×4231313131² = 35808021625146046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4231313111) 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, 3209746 + ... + 3211063.

It is an arithmetic number, because the mean of its divisors is an integer number (1059433650).

Almost surely, 2^4231313131 is an apocalyptic number.

4231313131 is a deficient number, since it is larger than the sum of its proper divisors (6421469).

4231313131 is an equidigital number, since it uses as much as digits as its factorization.

4231313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421468.

The product of its digits is 648, while the sum is 22.

The square root of 4231313131 is about 65048.5444187647. The cubic root of 4231313131 is about 1617.4283655121.

Adding to 4231313131 its reverse (1313131324), we get a palindrome (5544444455).

The spelling of 4231313131 in words is "four billion, two hundred thirty-one million, three hundred thirteen thousand, one hundred thirty-one".