4311221976349 has 2 divisors, whose sum is σ = 4311221976350. Its totient is φ = 4311221976348.

The previous prime is 4311221976329. The next prime is 4311221976431. The reversal of 4311221976349 is 9436791221134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3748057280100 + 563164696249 = 1935990^2 + 750443^2 .

It is a cyclic number.

It is not a de Polignac number, because 4311221976349 - 2¹⁹ = 4311221452061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4311221976296 and 4311221976305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4311221976329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2155610988174 + 2155610988175.

It is an arithmetic number, because the mean of its divisors is an integer number (2155610988175).

Almost surely, 2^{4311221976349} is an apocalyptic number.

It is an amenable number.

4311221976349 is a deficient number, since it is larger than the sum of its proper divisors (1).

4311221976349 is an equidigital number, since it uses as much as digits as its factorization.

4311221976349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 52.

The spelling of 4311221976349 in words is "four trillion, three hundred eleven billion, two hundred twenty-one million, nine hundred seventy-six thousand, three hundred forty-nine".