34121210257 has 2 divisors, whose sum is σ = 34121210258. Its totient is φ = 34121210256.

The previous prime is 34121210243. The next prime is 34121210351. The reversal of 34121210257 is 75201212143.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22466712321 + 11654497936 = 149889^2 + 107956^2 .

It is a cyclic number.

It is not a de Polignac number, because 34121210257 - 2²³ = 34112821649 is a prime.

It is not a weakly prime, because it can be changed into another prime (34121210657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17060605128 + 17060605129.

It is an arithmetic number, because the mean of its divisors is an integer number (17060605129).

Almost surely, 2^34121210257 is an apocalyptic number.

It is an amenable number.

34121210257 is a deficient number, since it is larger than the sum of its proper divisors (1).

34121210257 is an equidigital number, since it uses as much as digits as its factorization.

34121210257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 34121210257 in words is "thirty-four billion, one hundred twenty-one million, two hundred ten thousand, two hundred fifty-seven".