3213131131 has 8 divisors (see below), whose sum is σ = 3672552960. Its totient is φ = 2753810088.

The previous prime is 3213131113. The next prime is 3213131147. The reversal of 3213131131 is 1311313123.

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

It is a cyclic number.

It is not a de Polignac number, because 3213131131 - 2⁵ = 3213131099 is a prime.

It is a super-2 number, since 2×3213131131² = 20648423330002678322, 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 = 3213131099 and 3213131108.

It is not an unprimeable number, because it can be changed into a prime (3213131101) 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, 64350 + ... + 102796.

It is an arithmetic number, because the mean of its divisors is an integer number (459069120).

Almost surely, 2^3213131131 is an apocalyptic number.

3213131131 is a deficient number, since it is larger than the sum of its proper divisors (459421829).

3213131131 is a wasteful number, since it uses less digits than its factorization.

3213131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50393.

The product of its digits is 162, while the sum is 19.

The square root of 3213131131 is about 56684.4875693518. The cubic root of 3213131131 is about 1475.6254945136.

Adding to 3213131131 its reverse (1311313123), we get a palindrome (4524444254).

The spelling of 3213131131 in words is "three billion, two hundred thirteen million, one hundred thirty-one thousand, one hundred thirty-one".