42310999 has 2 divisors, whose sum is σ = 42311000. Its totient is φ = 42310998.

The previous prime is 42310991. The next prime is 42311033. The reversal of 42310999 is 99901324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42310999 - 2³ = 42310991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42310991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155499 + 21155500.

It is an arithmetic number, because the mean of its divisors is an integer number (21155500).

Almost surely, 2^42310999 is an apocalyptic number.

42310999 is a deficient number, since it is larger than the sum of its proper divisors (1).

42310999 is an equidigital number, since it uses as much as digits as its factorization.

42310999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 42310999 is about 6504.6905383731. The cubic root of 42310999 is about 348.4585243764.

The spelling of 42310999 in words is "forty-two million, three hundred ten thousand, nine hundred ninety-nine".