42240211204237 has 2 divisors, whose sum is σ = 42240211204238. Its totient is φ = 42240211204236.

The previous prime is 42240211204211. The next prime is 42240211204241. The reversal of 42240211204237 is 73240211204224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31212624754276 + 11027586449961 = 5586826^2 + 3320781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42240211204237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42240211204267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21120105602118 + 21120105602119.

It is an arithmetic number, because the mean of its divisors is an integer number (21120105602119).

Almost surely, 2^{42240211204237} is an apocalyptic number.

It is an amenable number.

42240211204237 is a deficient number, since it is larger than the sum of its proper divisors (1).

42240211204237 is an equidigital number, since it uses as much as digits as its factorization.

42240211204237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 34.

The spelling of 42240211204237 in words is "forty-two trillion, two hundred forty billion, two hundred eleven million, two hundred four thousand, two hundred thirty-seven".