42310340251 has 2 divisors, whose sum is σ = 42310340252. Its totient is φ = 42310340250.

The previous prime is 42310340213. The next prime is 42310340269. The reversal of 42310340251 is 15204301324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42310340251 - 2⁷ = 42310340123 is a prime.

It is not a weakly prime, because it can be changed into another prime (42310340201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155170125 + 21155170126.

It is an arithmetic number, because the mean of its divisors is an integer number (21155170126).

Almost surely, 2^42310340251 is an apocalyptic number.

42310340251 is a deficient number, since it is larger than the sum of its proper divisors (1).

42310340251 is an equidigital number, since it uses as much as digits as its factorization.

42310340251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 42310340251 its reverse (15204301324), we get a palindrome (57514641575).

The spelling of 42310340251 in words is "forty-two billion, three hundred ten million, three hundred forty thousand, two hundred fifty-one".