3211343442949 has 2 divisors, whose sum is σ = 3211343442950. Its totient is φ = 3211343442948.

The previous prime is 3211343442929. The next prime is 3211343443043. The reversal of 3211343442949 is 9492443431123.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3004873170849 + 206470272100 = 1733457^2 + 454390^2 .

It is an emirp because it is prime and its reverse (9492443431123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3211343442949 - 2¹⁷ = 3211343311877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3211343442929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605671721474 + 1605671721475.

It is an arithmetic number, because the mean of its divisors is an integer number (1605671721475).

Almost surely, 2^{3211343442949} is an apocalyptic number.

It is an amenable number.

3211343442949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211343442949 is an equidigital number, since it uses as much as digits as its factorization.

3211343442949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 49.

The spelling of 3211343442949 in words is "three trillion, two hundred eleven billion, three hundred forty-three million, four hundred forty-two thousand, nine hundred forty-nine".