3213324042421 has 2 divisors, whose sum is σ = 3213324042422. Its totient is φ = 3213324042420.

The previous prime is 3213324042359. The next prime is 3213324042433. The reversal of 3213324042421 is 1242404233123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2454533223025 + 758790819396 = 1566695^2 + 871086^2 .

It is a cyclic number.

It is not a de Polignac number, because 3213324042421 - 2²³ = 3213315653813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3213324042821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606662021210 + 1606662021211.

It is an arithmetic number, because the mean of its divisors is an integer number (1606662021211).

Almost surely, 2^{3213324042421} is an apocalyptic number.

It is an amenable number.

3213324042421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213324042421 is an equidigital number, since it uses as much as digits as its factorization.

3213324042421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 3213324042421 its reverse (1242404233123), we get a palindrome (4455728275544).

The spelling of 3213324042421 in words is "three trillion, two hundred thirteen billion, three hundred twenty-four million, forty-two thousand, four hundred twenty-one".