4130121397 has 2 divisors, whose sum is σ = 4130121398. Its totient is φ = 4130121396.

The previous prime is 4130121383. The next prime is 4130121427. The reversal of 4130121397 is 7931210314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3716853156 + 413268241 = 60966^2 + 20329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4130121397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4130121367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2065060698 + 2065060699.

It is an arithmetic number, because the mean of its divisors is an integer number (2065060699).

Almost surely, 2^4130121397 is an apocalyptic number.

It is an amenable number.

4130121397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4130121397 is an equidigital number, since it uses as much as digits as its factorization.

4130121397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 4130121397 is about 64266.0205474090. The cubic root of 4130121397 is about 1604.4306099692.

The spelling of 4130121397 in words is "four billion, one hundred thirty million, one hundred twenty-one thousand, three hundred ninety-seven".