3973317121 has 2 divisors, whose sum is σ = 3973317122. Its totient is φ = 3973317120.

The previous prime is 3973317077. The next prime is 3973317191. The reversal of 3973317121 is 1217133793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3923769600 + 49547521 = 62640^2 + 7039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3973317121 is a prime.

It is not a weakly prime, because it can be changed into another prime (3973317191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986658560 + 1986658561.

It is an arithmetic number, because the mean of its divisors is an integer number (1986658561).

Almost surely, 2^3973317121 is an apocalyptic number.

It is an amenable number.

3973317121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3973317121 is an equidigital number, since it uses as much as digits as its factorization.

3973317121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 37.

The square root of 3973317121 is about 63034.2535531278. The cubic root of 3973317121 is about 1583.8634716836.

The spelling of 3973317121 in words is "three billion, nine hundred seventy-three million, three hundred seventeen thousand, one hundred twenty-one".