3211313131 has 8 divisors (see below), whose sum is σ = 3459171744. Its totient is φ = 2963573760.

The previous prime is 3211313129. The next prime is 3211313167. The reversal of 3211313131 is 1313131123.

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 3211313131 - 2¹ = 3211313129 is a prime.

It is a super-2 number, since 2×3211313131² = 20625064050666046322, 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 = 3211313099 and 3211313108.

It is not an unprimeable number, because it can be changed into a prime (3211313111) 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, 30690 + ... + 85816.

It is an arithmetic number, because the mean of its divisors is an integer number (432396468).

Almost surely, 2^3211313131 is an apocalyptic number.

3211313131 is a deficient number, since it is larger than the sum of its proper divisors (247858613).

3211313131 is a wasteful number, since it uses less digits than its factorization.

3211313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59621.

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

The square root of 3211313131 is about 56668.4491670630. The cubic root of 3211313131 is about 1475.3471374473.

Adding to 3211313131 its reverse (1313131123), we get a palindrome (4524444254).

The spelling of 3211313131 in words is "three billion, two hundred eleven million, three hundred thirteen thousand, one hundred thirty-one".