1220311313941 has 2 divisors, whose sum is σ = 1220311313942. Its totient is φ = 1220311313940.

The previous prime is 1220311313929. The next prime is 1220311313951. The reversal of 1220311313941 is 1493131130221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 835999348900 + 384311965041 = 914330^2 + 619929^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220311313941 - 2²³ = 1220302925333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220311313951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610155656970 + 610155656971.

It is an arithmetic number, because the mean of its divisors is an integer number (610155656971).

Almost surely, 2^{1220311313941} is an apocalyptic number.

It is an amenable number.

1220311313941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220311313941 is an equidigital number, since it uses as much as digits as its factorization.

1220311313941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 1220311313941 in words is "one trillion, two hundred twenty billion, three hundred eleven million, three hundred thirteen thousand, nine hundred forty-one".