42030202061 has 2 divisors, whose sum is σ = 42030202062. Its totient is φ = 42030202060.

The previous prime is 42030202031. The next prime is 42030202117. The reversal of 42030202061 is 16020203024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23430424900 + 18599777161 = 153070^2 + 136381^2 .

It is a cyclic number.

It is not a de Polignac number, because 42030202061 - 2¹⁴ = 42030185677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42030202031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015101030 + 21015101031.

It is an arithmetic number, because the mean of its divisors is an integer number (21015101031).

Almost surely, 2^42030202061 is an apocalyptic number.

It is an amenable number.

42030202061 is a deficient number, since it is larger than the sum of its proper divisors (1).

42030202061 is an equidigital number, since it uses as much as digits as its factorization.

42030202061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 42030202061 its reverse (16020203024), we get a palindrome (58050405085).

The spelling of 42030202061 in words is "forty-two billion, thirty million, two hundred two thousand, sixty-one".