42420234141217 has 2 divisors, whose sum is σ = 42420234141218. Its totient is φ = 42420234141216.

The previous prime is 42420234141083. The next prime is 42420234141359. The reversal of 42420234141217 is 71214143202424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39214096797456 + 3206137343761 = 6262116^2 + 1790569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42420234141217 is a prime.

It is not a weakly prime, because it can be changed into another prime (42420234141617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21210117070608 + 21210117070609.

It is an arithmetic number, because the mean of its divisors is an integer number (21210117070609).

Almost surely, 2^{42420234141217} is an apocalyptic number.

It is an amenable number.

42420234141217 is a deficient number, since it is larger than the sum of its proper divisors (1).

42420234141217 is an equidigital number, since it uses as much as digits as its factorization.

42420234141217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 37.

The spelling of 42420234141217 in words is "forty-two trillion, four hundred twenty billion, two hundred thirty-four million, one hundred forty-one thousand, two hundred seventeen".