34243131257 has 2 divisors, whose sum is σ = 34243131258. Its totient is φ = 34243131256.

The previous prime is 34243131199. The next prime is 34243131341. The reversal of 34243131257 is 75213134243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31367597881 + 2875533376 = 177109^2 + 53624^2 .

It is a cyclic number.

It is not a de Polignac number, because 34243131257 - 2²⁰ = 34242082681 is a prime.

It is not a weakly prime, because it can be changed into another prime (34245131257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17121565628 + 17121565629.

It is an arithmetic number, because the mean of its divisors is an integer number (17121565629).

Almost surely, 2^34243131257 is an apocalyptic number.

It is an amenable number.

34243131257 is a deficient number, since it is larger than the sum of its proper divisors (1).

34243131257 is an equidigital number, since it uses as much as digits as its factorization.

34243131257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 35.

The spelling of 34243131257 in words is "thirty-four billion, two hundred forty-three million, one hundred thirty-one thousand, two hundred fifty-seven".