3321121231 has 2 divisors, whose sum is σ = 3321121232. Its totient is φ = 3321121230.

The previous prime is 3321121217. The next prime is 3321121253. The reversal of 3321121231 is 1321211233.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3321121231 is a prime.

It is a super-2 number, since 2×3321121231² = 22059692461997910722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3321121199 and 3321121208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3321121831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660560615 + 1660560616.

It is an arithmetic number, because the mean of its divisors is an integer number (1660560616).

Almost surely, 2^3321121231 is an apocalyptic number.

3321121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321121231 is an equidigital number, since it uses as much as digits as its factorization.

3321121231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 3321121231 is about 57629.1699662593. The cubic root of 3321121231 is about 1491.9751040739.

Adding to 3321121231 its reverse (1321211233), we get a palindrome (4642332464).

The spelling of 3321121231 in words is "three billion, three hundred twenty-one million, one hundred twenty-one thousand, two hundred thirty-one".