2331221130757 has 2 divisors, whose sum is σ = 2331221130758. Its totient is φ = 2331221130756.

The previous prime is 2331221130737. The next prime is 2331221130779. The reversal of 2331221130757 is 7570311221332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2223680422401 + 107540708356 = 1491201^2 + 327934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331221130757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2331221130737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165610565378 + 1165610565379.

It is an arithmetic number, because the mean of its divisors is an integer number (1165610565379).

Almost surely, 2^{2331221130757} is an apocalyptic number.

It is an amenable number.

2331221130757 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331221130757 is an equidigital number, since it uses as much as digits as its factorization.

2331221130757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The spelling of 2331221130757 in words is "two trillion, three hundred thirty-one billion, two hundred twenty-one million, one hundred thirty thousand, seven hundred fifty-seven".