42021302237 has 2 divisors, whose sum is σ = 42021302238. Its totient is φ = 42021302236.

The previous prime is 42021302233. The next prime is 42021302303. The reversal of 42021302237 is 73220312024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42019260196 + 2042041 = 204986^2 + 1429^2 .

It is a cyclic number.

It is not a de Polignac number, because 42021302237 - 2² = 42021302233 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42021302233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010651118 + 21010651119.

It is an arithmetic number, because the mean of its divisors is an integer number (21010651119).

Almost surely, 2^42021302237 is an apocalyptic number.

It is an amenable number.

42021302237 is a deficient number, since it is larger than the sum of its proper divisors (1).

42021302237 is an equidigital number, since it uses as much as digits as its factorization.

42021302237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

The spelling of 42021302237 in words is "forty-two billion, twenty-one million, three hundred two thousand, two hundred thirty-seven".