3213331131 has 4 divisors (see below), whose sum is σ = 4284441512. Its totient is φ = 2142220752.

The previous prime is 3213331123. The next prime is 3213331151. The reversal of 3213331131 is 1311333123.

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

It is not a de Polignac number, because 3213331131 - 2³ = 3213331123 is a prime.

It is a super-2 number, since 2×3213331131² = 20650993914907478322, 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 = 3213331098 and 3213331107.

It is not an unprimeable number, because it can be changed into a prime (3213331111) 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, 535555186 + ... + 535555191.

It is an arithmetic number, because the mean of its divisors is an integer number (1071110378).

Almost surely, 2^3213331131 is an apocalyptic number.

3213331131 is a deficient number, since it is larger than the sum of its proper divisors (1071110381).

3213331131 is a wasteful number, since it uses less digits than its factorization.

3213331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071110380.

The product of its digits is 486, while the sum is 21.

The square root of 3213331131 is about 56686.2516929811. The cubic root of 3213331131 is about 1475.6561104418.

Adding to 3213331131 its reverse (1311333123), we get a palindrome (4524664254).

The spelling of 3213331131 in words is "three billion, two hundred thirteen million, three hundred thirty-one thousand, one hundred thirty-one".