3213121001 has 2 divisors, whose sum is σ = 3213121002. Its totient is φ = 3213121000.

The previous prime is 3213120961. The next prime is 3213121039. The reversal of 3213121001 is 1001213123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2902515625 + 310605376 = 53875^2 + 17624^2 .

It is an emirp because it is prime and its reverse (1001213123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3213121001 - 2¹⁰ = 3213119977 is a prime.

It is not a weakly prime, because it can be changed into another prime (3213121501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606560500 + 1606560501.

It is an arithmetic number, because the mean of its divisors is an integer number (1606560501).

Almost surely, 2^3213121001 is an apocalyptic number.

It is an amenable number.

3213121001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213121001 is an equidigital number, since it uses as much as digits as its factorization.

3213121001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3213121001 is about 56684.3982150292. The cubic root of 3213121001 is about 1475.6239437830.

Adding to 3213121001 its reverse (1001213123), we get a palindrome (4214334124).

The spelling of 3213121001 in words is "three billion, two hundred thirteen million, one hundred twenty-one thousand, one".